Do you have a question about the QM-7 Series and is the answer not in the manual?
Questions and answers
Michael A Huertas
March 17, 2025
Tilt Error ISM Module Error 7A62
Unable to move Tilt down
1 comments:
Mr. Anderson
March 17, 2025
Tilt Error ISM Module Error 7A62 on the Quickie QM-7 Series indicates an issue with the Intelligent Seating Module (ISM). To resolve the issue where the tilt cannot move down:
1. Check Battery Voltage: At the 6-pin connector leading to the control module, verify that battery voltage is present between the indicated pins. Polarity is not important. 2. Inspect Cable: If voltage is not present, replace the cable leading to the control module. If the problem persists, replace the control module. 3. Check Continuity: At the 6-pin connector on the rear of the tilt, check continuity between the indicated pins. 4. Verify Actuator Condition: If the tilt actuator does not operate, determine the tilt system's position and measure continuity accordingly. 5. Check for Overload or Overheating: Allow the unit to cool if necessary. If the error repeats, the actuator may be defective or overloaded. 6. Inspect and Replace Defective Cables: If a bad cable is suspected, inspect and replace it. 7. Verify Settings: Ensure programming settings match the installed equipment. If settings are correct and the issue persists, the control module may be defective.
If none of these steps resolve the issue, contact Sunrise Medical Technical Service for further assistance.
Quickie QM-7 Series Service Manual Contents Nine Bars - Solenoid Brake Trip Introduction and Basic Setup Ten Bars - High Battery Voltage Motor - Drive Gear engaged Battery Fault Motor - Free-wheel Section 4 Section 1 R-net Troubleshooting Multimeter Tutorial...
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This Service Manual is intended as a troubleshooting guide for the Quickie QM-7 Series of products. Photographs and content may differ from the actual products in some cases due to changes in specifications and other factors.
Input device? (normally Joystick) b. Cable from Joystick to the Bus Line c. Control Module; for the QM-7 series located at back of chair behind shroud d. Are batteries installed correctly? (refer to Section 1 of this manual □ Are all necessary connections fastened and fully engaged? a.
“fused”, so that you don’t end up melting the meter’s circuits. 4. Current up to 10A. Same as above, except it can take more cur- Fig. 3.3 rent, as the name suggests. SUNRISE MEDICAL QM-7 SERIES SERVICE MANUAL JANUARY 2012 PAGE 1.1...
Found on some multimeters, it allows a check for shorts without taking your eyes off your work. Other meters signify this with a small fl ashing light. PAGE 1.2 QM-7 SERIES SERVICE MANUAL JANUARY 2012 SUNRISE MEDICAL...
Do not allow metal tools to drop on to or touch the exposed terminals of the batteries or other exposed connections, as this could cause a short circuit, which may result in an explosion. SUNRISE MEDICAL QM-7 SERIES SERVICE MANUAL JANUARY 2012 PAGE 1.3...
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NEG = Pb ACID = H2O ACID = H2SO2 As battery discharges, the sulfate from the electrolyte forms on the plates. As battery recharges, the sulfate is driven back into the electrolyte PAGE 1.4 QM-7 SERIES SERVICE MANUAL JANUARY 2012 SUNRISE MEDICAL...
• Move in unintended directions. If any of these occur, severe injury could result. 2. EMI can damage the control system of a power chair, resulting in a safety hazard and/or costly repairs. SUNRISE MEDICAL QM-7 SERIES SERVICE MANUAL JANUARY 2012 PAGE 1.5...
fi xed tapered legrests with one-piece solid footplate and Gp 24 gel cell batteries. The following dealer installed speciality input devices have an unknown effect on the immunity level because they have not been tested with the Quickie control systems: •...
Do not place the printed circuit board on a hard surface. • Tighten board mounting screws only hand tight (torque12.4 in lbs/1.4Nm) in a cross pattern to reduce stress on mounting holes and PCB board material. SUNRISE MEDICAL QM-7 SERIES SERVICE MANUAL JANUARY 2012 PAGE 1.7...
See Section 7 for correct See Section 7 for correct Battery Removal and/or Installation Battery Removal and/or Installation PAGE 1.8 QM-7 SERIES SERVICE MANUAL JANUARY 2012 SUNRISE MEDICAL...
Speed/Profile indicator- A series of five LED’s, which display speed and profile settings Speed Decrease. Used to decrease Used to Increase Speed Increase. the Speed/ Profile setting. the Speed/ Profile setting. SUNRISE MEDICAL QM-7 SERIES SERVICE MANUAL JANUARY 2012 PAGE 1.9...
M1 = LEFT SIDE MOTOR M2 = RIGHT SIDE MOTOR JSM = JOYSTICK MODULE INH-2 = INHIBIT 2 A1 = ACTUATOR 1 A2 =ACTUATOR 2 OBC = ON BOARD CHARGER + - =BATTERY PAGE 1.10 QM-7 SERIES SERVICE MANUAL JANUARY 2012 SUNRISE MEDICAL...
Used to change modes Speed down button peed up button 2nd function Tilt down. 2nd function Tilt Up *NOTE: If unit is set-up with elevate, 2nd function could be elevate up or down. SUNRISE MEDICAL JANUARY 2012 QM-7 SERIES SERVICE MANUAL PAGE 1.11...
Down to change profiles settings. NOTE: Speed buttons do not affect speed on joysticks with Pots. *NOTE: 2nd function setup per configuration and is changeable using the Dealer PC Programmer with dongle. PAGE 1.12 QM-7 SERIES SERVICE MANUAL JANUARY 2012 SUNRISE MEDICAL...
Rnet Controller M1 = LEFT SIDE MOTOR M2 = RIGHT SIDE MOTOR INH-2 = INHIBIT 2 A1 = ACTUATOR 1 A2 =(NOT USED) OBC = ON BOARD CHARGER + - =BATTERY SUNRISE MEDICAL QM-7 SERIES SERVICE MANUAL JANUARY 2012 PAGE 1.13...
ISM (Intelligent Seating Module) Actuator Seat Channel Function ACTUATOR Backrest CHANNELS Tilt Left Inhibit Lift Lights Left ELR Right ELR Not used Lights Function Ground Right Inhibit Lights Lights Indicator Brake/Horn PAGE 1.14 QM-7 SERIES SERVICE MANUAL JANUARY 2012 SUNRISE MEDICAL...
Tyco Bus VR2-90 Drive Only Power Module 4-Way BASE VR2-90 Tyco Bus Tilt without Lift Power Module Lift without Tilt VR2-90 Power Module BUS Connections - VR2 Tilt with Lift PAGE 2.2 QM-7 SERIES SERVICE MANUAL JANUARY 2012 SUNRISE MEDICAL...
R-Net Bus R-net Bus No Lift or Ti lt Tilt without Lift Power Module Power Module EL-90 EL-90 Power Module BUS Connections - R-Net Lift without Tilt Lift with Tilt SUNRISE MEDICAL QM-7 SERIES SERVICE MANUAL JANUARY 2012 PAGE 2.3...
Mini-Fit Jr. Actuator Seat Lift Inhibit2 ACTUATOR Power Module BASE HARNESS 6-Way 3.5 mm Stereo Mini-Fit J r. ACTUATOR ADAPTOR Phone Jack Inhibit3 HARNESS Dual-Toggle 4-Way Amp Single Actuator Mate-N-Loc Driver PAGE 2.4 QM-7 SERIES SERVICE MANUAL JANUARY 2012 SUNRISE MEDICAL...
Inhibit2 Power 6-Way 6-Way 6-Way Module POWER/INHIBIT Mini-Fit J r. Mini-Fit J r. Mini-Fit J r. HARNESS POWER/INHIBIT Inhibit3 HARNESS 3-Way Molex Switch Controls 3-Axis Actuator Driver Mini-Fit J r. SUNRISE MEDICAL QM-7 SERIES SERVICE MANUAL JANUARY 2012 PAGE 2.5...
Battery box, and secure with cable TERMINAL Battery tie as shown in (figure 4.3.4) when BATTERIES Harness High replacing Power Harness. Battery Harness Group 22 Battery Cable Spacer Power Back Harness PAGE 2.8 QM-7 SERIES SERVICE MANUAL JANUARY 2012 SUNRISE MEDICAL...
Current / Voltage check with a regular interval check - Another way of truly knowing how much time your battery will last, but it is also time consuming. Note: The voltmeters on load testers are not accurate enough to establish a state of charge. SUNRISE MEDICAL QM-7 SERIES SERVICE MANUAL JANUARY 2012 PAGE 3.1...
(figure 3.2.4). If the voltage is absent Replace the Main Battery wire Harness. If the polarity is reversed correct bat- tery wiring. Fig 3.2.4 PAGE 3.2 QM-7 SERIES SERVICE MANUAL JANUARY 2012 SUNRISE MEDICAL...
This indicates a system trip, i.e. the VR2 has detected a problem somewhere in the wheelchair's electrical system. Please refer to this Section (VR2 Controller Diagnostics). SUNRISE MEDICAL QM-7 SERIES SERVICE MANUAL JANUARY 2012 PAGE 3.3...
Inspection). Ensure brush is not excessively worn, (brush need to be at least 1/2" long) note taper (figure 3.4.3) on brush for re-installation (figure 3.4.4) Replace as required. Fig 3.4.3 Fig 3.4.4 PAGE 3.4 QM-7 SERIES SERVICE MANUAL JANUARY 2012 SUNRISE MEDICAL...
4-pin motor connector as shown in (figure 3.5.3). If the meter reads between 0 to 1.5 ohms, then replace the controller. If none of the above corrects the problem, replace the right motor. Fig 3.5.3 SUNRISE MEDICAL QM-7 SERIES SERVICE MANUAL JANUARY 2012 PAGE 3.5...
(below right). If all of the readings are Fig 3.6.5 open, (figure 3.6.5) then replace the controller. If Test 3 Test 4 any of the readings are short, then replace the right motor. PAGE 3.6 QM-7 SERIES SERVICE MANUAL JANUARY 2012 SUNRISE MEDICAL...
If this does not correct the problem,disconnect the power to the controller for 2 minutes, replug in to reboot the module. If the condition still exits, then replace the controller. SUNRISE MEDICAL QM-7 SERIES SERVICE MANUAL JANUARY 2012 PAGE 3.7...
1 and pin 2 of the charger port of the VR2 controller, see (figure 3.8.3) If the meter reads more than 30 volts, then check the charger. Otherwise, replace your controller. PAGE 3.8 QM-7 SERIES SERVICE MANUAL JANUARY 2012 SUNRISE MEDICAL...
3. If battery voltage is not present, (figure 4.1.3) then replace the batteries. If battery voltage is low (figure 4.1.4) then recharge the batteries and retest Fig. 4.1.3 Fig. 4.1.4 SUNRISE MEDICAL QM-7 SERIES SERVICE MANUAL JANUARY 2012 PAGE 4.1...
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Multimeter to check for battery voltage at the connector. If a good voltage is present, with batteries fully charged, (figure 4.2.2), then replace the control module. Retest as necessary. fig 4.2.2 PAGE 4.2 QM-7 SERIES SERVICE MANUAL JANUARY 2012 SUNRISE MEDICAL...
(figure 4.3.4) this will protect the cable from damage, and fig. 4.3.3 allow enough slack to plug into the batteries. fig. 4.3.4 SUNRISE MEDICAL QM-7 SERIES SERVICE MANUAL JANUARY 2012 PAGE 4.3...
A latch function has exceeded it's preset time. Brake Lamp Short Left Lamp Short Right Lamp Short L Ind Lamp Short R Ind Lamp Short L Ind Lamp Failed R Ind Lamp Failed PAGE 4.4 QM-7 SERIES SERVICE MANUAL JANUARY 2012 SUNRISE MEDICAL...
Charging This indication is present when the battery charger is connected. There may also be an error in the control module. If error persists, contact Sunrise Technical Service for assistance. SUNRISE MEDICAL QM-7 SERIES SERVICE MANUAL JANUARY 2012 PAGE 4.5...
An Actuator trip is indicated. If more than one actuator is fi tted, check which actuator is working correctly. Check the actuator wiring. PAGE 4.6 QM-7 SERIES SERVICE MANUAL JANUARY 2012 SUNRISE MEDICAL...
2. 2. Tilt the seating system to the rear, enough to gain access to the micro switch and proceed to Step 3. fig. 4.7.2 SUNRISE MEDICAL QM-7 SERIES SERVICE MANUAL JANUARY 2012 PAGE 4.7...
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Retest as necessary. 9. If the test in step 8 passes, replace in this order: a. Cable leading from tilt to control module. b. Control module 10. Retest as necessary fig. 4.8.4 PAGE 4.8 QM-7 SERIES SERVICE MANUAL JANUARY 2012 SUNRISE MEDICAL...
(fi gure 4.9.2) fig. 4.9.2 5. Disconnect the 6-pin connector leading to the control module by pressing down on the top of connector as shown in (fi gure 4.9.3) fig. 4.9.3 SUNRISE MEDICAL QM-7 SERIES SERVICE MANUAL JANUARY 2012 PAGE 4.9...
Disconnect the 6-pin cable leading to the control module. 5. Select tilt on the hand control and place a rubber band around the joystick to hold it displaced fig. 4.10.4 (fi gure 4.10.4). PAGE 4.10 QM-7 SERIES SERVICE MANUAL JANUARY 2012 SUNRISE MEDICAL...
8. At the 6 pin connector (B) (fi gure 4.11.2) on the rear of the tilt, check continuity between the indicated pins (fi g. 4.11.3). fig. 4.11.2 Voltage to 1 to 3 ohms the actuator fig. 4.11.3 SUNRISE MEDICAL QM-7 SERIES SERVICE MANUAL JANUARY 2012 PAGE 4.11...
Refer to Tilt Actuator and Micro- Switch Removal section this manual. Retest as Negative probe here necessary. Positive probe here Continuity between pins *SEE NOTE* fig. 4.12.4 PAGE 4.12 QM-7 SERIES SERVICE MANUAL JANUARY 2012 SUNRISE MEDICAL...
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Note: in this example, a small surface charge is present. After the voltage has stabilized, record the voltage. Typical value for a fully charged pair of batteries is 25.6 VDC (12.8 VDC each). fig. 5.1.3 SUNRISE MEDICAL QM-7 SERIES SERVICE MANUAL JANUARY 2012 PAGE 5.1...
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If the voltage does not return to .1 VDC of the starting voltage at the end of the 5 minute test, evaluate the age of the batteries and the use they have received, and consider replacing them. PAGE 5.2 QM-7 SERIES SERVICE MANUAL JANUARY 2012 SUNRISE MEDICAL...
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Less than 11.9 VDC indicates an excessively discharged battery. f. Values larger than 13 VDC indicate either an overcharged battery or one that has just been removed from charge, as in the example (fi gure 5.1.1) SUNRISE MEDICAL QM-7 SERIES SERVICE MANUAL JANUARY 2012 PAGE 5.3...
5. Remove the brush by using a common screwdriver to unscrew the plastic cap. Be careful not strip out the slot (fi gure. 6.1.4). fig. 6.1.4 SUNRISE MEDICAL QM-7 SERIES SERVICE MANUAL JANUARY 2012 PAGE 6.1...
Sunrise Medical Technical Service if in doubt of its condition. fig. 6.2.3 8. Inspect the motor connector at both the motor end and the control module end for signs of over heating (fi gure. 6.2.4). fig. 6.2.4 PAGE 6.2 QM-7 SERIES SERVICE MANUAL JANUARY 2012 SUNRISE MEDICAL...
Note: New brush readings may be different than those recorded above. The new brush assemblies should be run-in prior to measuring their resistance. Contact Sunrise Technical Service if the readings are either signifi cantly higher or lower than those recorded above. SUNRISE MEDICAL QM-7 SERIES SERVICE MANUAL JANUARY 2012 PAGE 6.3...
(*Remember to use proper lifting techniques, the batteries are heavy.). To remove the harness from the battery posts, use an open end wrench. fig. 7.1.4 SUNRISE MEDICAL QM-7 SERIES SERVICE MANUAL JANUARY 2012 PAGE 7.1...
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Batteries installed incorrectly can blow the fuse for this system. Pay careful attention to install the battery harness across both batteries instead of to each of the batteries individually. Refer to Battery Wiring Diagram in Section 2 for reference. PAGE 7.2 QM-7 SERIES SERVICE MANUAL JANUARY 2012 SUNRISE MEDICAL...
5. To separate the Motor from the Motor Bracket, use a 5mm Hex key to remove the 6 M6 Socket head Cap screws shown in (fi gure. 7.3.4) . fig. 7.3.4 SUNRISE MEDICAL QM-7 SERIES SERVICE MANUAL JANUARY 2012 PAGE 7.3...
M4 Hex Key locating the two attachment screws. (fi gure 7.4.2). fig. 7.4.2 Locate and carefully disconnect all Power, Plugs, and/or connectors that are attached to the controller. (fi gure 7.4.3). fig. 7.4.3 PAGE 7.4 QM-7 SERIES SERVICE MANUAL JANUARY 2012 SUNRISE MEDICAL...
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4. Once all bolts and washers have been removed, Separate the module from the backing plate and remove it. (fi gure 7.5.2) fig. 7.5.2 5. To re-install the controller reverse the previous steps. (fi gure 7.5.3) fig. 7.5.3 SUNRISE MEDICAL QM-7 SERIES SERVICE MANUAL JANUARY 2012 PAGE 7.5...
24mm wrench for the bottom of the stem assembly, remove the locknut, washer, and caster stem from the Caster Arm. (fi gure 7.6.4) fig. 7.6.4 PAGE 7.6 QM-7 SERIES SERVICE MANUAL JANUARY 2012 SUNRISE MEDICAL...
2. For Gas Spring Removal, Remove the Lower holding bolt (A). using a 5mm Hex key (fi gure 7.7.2) fig. 7.7.2 3. Remove the top holding Bolt with a 6mm hex (fi gure 7.7.3) fig. 7.7.3 SUNRISE MEDICAL QM-7 SERIES SERVICE MANUAL JANUARY 2012 PAGE 7.7...
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(C) as shown in (fi gure 7.8.3). and then tighten the Jam Nut (D) to secure the shaft at the correct distance, and replace the gas spring insert. fig. 7.8.3 PAGE 7.8 QM-7 SERIES SERVICE MANUAL JANUARY 2012 SUNRISE MEDICAL...
3. Use two 13 mm wrenches and remove the nuts at both ends of the actuator. See (fi gure 7.9.3). which shows one end. Remove both pins from the tilt actuator. fig. 7.9.3 SUNRISE MEDICAL QM-7 SERIES SERVICE MANUAL JANUARY 2012 PAGE 7.9...
1. Locate and Remove the rear shroud (fi gure 7.10.2) by using a fl at head screw driver to lift the fig. 7.10.2 small head of the fasteners (F) (fi gure 7.10.3) fig. 7.10.3 PAGE 7.10 QM-7 SERIES SERVICE MANUAL JANUARY 2012 SUNRISE MEDICAL...
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ISM mount to the recline structure (fi gure 7.11.2). fig. 7.11.2 4. Use the same wrench to loosen (Do not Remove) the bottom two socket head cap screws. (fi gure 7.11.3) fig. 7.11.3 SUNRISE MEDICAL QM-7 SERIES SERVICE MANUAL JANUARY 2012 PAGE 7.11...
Note: You do not have to fully disconnect the gas strut. Once the top mount is disconnected, rotate the gas strut down and out of the way to work on the other components. PAGE 7.12 QM-7 SERIES SERVICE MANUAL JANUARY 2012 SUNRISE MEDICAL...
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8. Use a 1/4" Hex wrench and a 9/16" open-end wrench and remove the top bolt that holds the recline actuator to the back structure. (fi gure 7.13.3) fig. 7.13.3 SUNRISE MEDICAL QM-7 SERIES SERVICE MANUAL JANUARY 2012 PAGE 7.13...
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7.14.2 Caution: Attaching the recline actuator may require 2 people, one to compress the gas strut and one to insert the bolts into the bottom recline actuator mount. PAGE 7.14 QM-7 SERIES SERVICE MANUAL JANUARY 2012 SUNRISE MEDICAL...
1. Locate the ISM control box on the back of the chair and disconnect all of the wires that connect to the Lift Module. (fi gure 7.15.3) Remove/ unattach the the lift module from the base. fig. 7.15.3 SUNRISE MEDICAL QM-7 SERIES SERVICE MANUAL JANUARY 2012 PAGE 7.15...
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3. The Second actuator bolt can be located as shown in (fi gure 7.16.3) To remove, use a 13mm open end wrench on nut and slip bolt out of assembly. fig. 7.16.3 PAGE 7.16 QM-7 SERIES SERVICE MANUAL JANUARY 2012 SUNRISE MEDICAL...
Hex key that are used to hold the bottom of the seat pan in place (figure 8.1.3) – totally remove from its position so that seat pan plates can slide for adjustment. fig. 8.1.3 SUNRISE MEDICAL QM-7 SERIES SERVICE MANUAL JANUARY 2012 PAGE 8.1...
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7. Using a 5mm Hex Key and either a 13mm open end wrench or ratchet., Remove the nuts and bolts from the back bracket attached to the back cane assembly (figure 8.2.3) and adjust as necessary. fig. 8.2.3 PAGE 8.2 QM-7 SERIES SERVICE MANUAL JANUARY 2012 SUNRISE MEDICAL...
13mm open-end wrench or ratchet. Move the footrest extension, and calfpads to the desired fit locations. Double-check fit with client before fully tightening the hardware. fig. 8.3.3 SUNRISE MEDICAL QM-7 SERIES SERVICE MANUAL JANUARY 2012 PAGE 8.3...
2 Right Command (2) - Controls the raising and lowering of the leg on the center mount. 3. Reverse Command (3) - Operates both raising and lowering Center Mount, plus extension of the legrest (figure 8.4.3) fig. 8.4.3 PAGE 8.4 QM-7 SERIES SERVICE MANUAL JANUARY 2012 SUNRISE MEDICAL...
Hex Key, and 13mm open end wrench and/or ratchet. 2. Loosen the 2 BHCS bolts (A) (figure 8.6.1) with a 5mm Hex key and use 13mm open end Wrench for the nuts (B). fig. 8.5.2 SUNRISE MEDICAL QM-7 SERIES SERVICE MANUAL JANUARY 2012 PAGE 8.5...
2. Once you have the correct seat height re- insert the threaded bolt. Make sure that the other front bracket has been adjusted the same amount before tightening the bolts. (figure 8.6.3) fig. 8.6.3 PAGE 8.6 QM-7 SERIES SERVICE MANUAL JANUARY 2012 SUNRISE MEDICAL...
3/4" increments (figure 8.7.3) fig. 8.7.3 Note: If the pivot point is raised, the gas strut and Recline actuator must be raised an equal amount, refer to step 4. SUNRISE MEDICAL QM-7 SERIES SERVICE MANUAL JANUARY 2012 PAGE 8.7...
7. Loosen the two mounting bolts (C) and slide the bracket to the desired location. There are recessed holes in track for Seat depth as well. (figure 8.8.3) fig. 8.8.3 PAGE 8.8 QM-7 SERIES SERVICE MANUAL JANUARY 2012 SUNRISE MEDICAL...
5mm Hex Key as shown in (figure 8.9.3). adjust the armrest angle and then tighten the set screw at desired angle. (figure 8.9.4. fig. 8.9.3 fig. 8.9.4 SUNRISE MEDICAL QM-7 SERIES SERVICE MANUAL JANUARY 2012 PAGE 8.9...
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The block can be set from 17° forward, or 15° rearward. Block placement in (figure 8.10.4), yeilds the result seen in (figure 8.10.5) fig. 8.10.5 PAGE 8.10 QM-7 SERIES SERVICE MANUAL JANUARY 2012 SUNRISE MEDICAL...
2. 3-Axis 7.0 AMP box used for Tilt and power legrests (figure 9.2.2) fig. 9.2.2 3. 3-Axis 4.5 AMP box used for Lift and power legrests, and for HD Tilt (figure 9.2.3) fig. 9.2.3 SUNRISE MEDICAL QM-7 SERIES SERVICE MANUAL JANUARY 2012 PAGE 9.1...
Multi meter to pins shown. (figure 9.2.4) connection prior to depression of switch. (figure 9.2.5) shows depression switch and what meter will read. fig. 9.2.5 PAGE 9.2 QM-7 SERIES SERVICE MANUAL JANUARY 2012 SUNRISE MEDICAL...
6 / D Tilt Module Tilt Module - HD 9° Lift Module Lift/Tilt Combo REAR POST POSITIONS FRONT POST POSITIONS 1ST HOLE 2ND HOLE FRONT VIEW FRONT VIEW BASE PACKER POSITIONS SUNRISE MEDICAL QM-7 SERIES SERVICE MANUAL JANUARY 2012 PAGE 9.5...
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Do you have a question about the QM-7 Series and is the answer not in the manual?
Questions and answers
Tilt Error ISM Module Error 7A62 Unable to move Tilt down
Tilt Error ISM Module Error 7A62 on the Quickie QM-7 Series indicates an issue with the Intelligent Seating Module (ISM). To resolve the issue where the tilt cannot move down:
1. Check Battery Voltage: At the 6-pin connector leading to the control module, verify that battery voltage is present between the indicated pins. Polarity is not important.
2. Inspect Cable: If voltage is not present, replace the cable leading to the control module. If the problem persists, replace the control module.
3. Check Continuity: At the 6-pin connector on the rear of the tilt, check continuity between the indicated pins.
4. Verify Actuator Condition: If the tilt actuator does not operate, determine the tilt system's position and measure continuity accordingly.
5. Check for Overload or Overheating: Allow the unit to cool if necessary. If the error repeats, the actuator may be defective or overloaded.
6. Inspect and Replace Defective Cables: If a bad cable is suspected, inspect and replace it.
7. Verify Settings: Ensure programming settings match the installed equipment. If settings are correct and the issue persists, the control module may be defective.
If none of these steps resolve the issue, contact Sunrise Medical Technical Service for further assistance.
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Pm Module error 3104