Comfort Alert Diagnostic Chart - Rheem RRPL-B Installation Instructions Manual

XVIII. COMFORT ALERT DIAGNOSTIC CHART
XVIII. COMFORT LERT DI GNOSTIC CH RT
FIGURE 61
FIGURE 64
Status LED
Green "POWER"
Red "TRIP"
Yellow "ALERT" Long Run Time
Flash Code 1
Yellow "ALERT" System Pressure Trip
Flash Code 2 Discharge or suction
pressure out of limits or
compressor overloaded
Yellow "ALERT" Short Cycling
Flash Code 3
Yellow "ALERT"
Flash Code 4
Yellow "ALERT"
Flash Code 5
Yellow "ALERT" Open Start Circuit
Flash Code 6
Yellow "ALERT"
Flash Code 7
Yellow "ALERT"
Flash Code 8
Yellow "ALERT" Low Voltage
Flash Code 9
• Flash Code number corresponds to a number of LED flashes, followed by a pause and then repeated.
TRIP and ALERT LEDs flashing at same time means control circuit voltage is too low for operation.
Reset ALERT Flash code by removing 24VAC power from module.
Last ALERT Flash code is displayed for 1 minute after module is powered on.
106
106
Status LED Description
Module has power
Thermostat demand signal
Y1 is present, but the
compressor is not
running
Compressor is
running extremely
long run cycles
Compressor is running
only briefly
Locked Rotor
Open Circuit
Current only in run circuit
Open Run Circuit
Current only in start circuit
Welded Contactor
Compressor always runs
Control circuit < 17VAC
SINGLE PHASE UNIT
SINGLE PHASE UNIT
Status LED Troubleshooting Information
Supply voltage is present at module terminals
1. Compressor internal overload is open
2. Broken wire or connector is not making contact
3. Low pressure switch open, if present
4. Compressor contactor has failed open
1. Low refrigerant charge
2. Evaporator blower is not running
3. Evaporator coil is frozen
4. Faulty TXV
5. Condenser coil is dirty
6. Liquid line restriction (filter drier blocked if present in system)
7. Thermostat is malfunctioning
1. Condenser coil poor air circulation (dirty, blocked, damaged)
2. Condenser fan is not running
3. Return air duct has substantial leakage
If low pressure switch is present, check flash code (1)
4.
information
1.
High head pressure
2. Thermostat demand signal is intermittent
3. Time delay relay defective, if present
4. Hot gas sensor defective, if present
1. Run capacitor has failed
2. Low line voltage (contact utility if voltage at disconnect is low)
3. Excessive liquid refrigerant in compressor
4. Compressor bearings are seized
1. Compressor contactor has failed open
2. High pressure switch is open, If present
3. Open circuit in compressor supply wiring or connections
4. Unusually long compressor protector reset time due to
extreme ambient temperature
5. Compressor windings are damaged
1. Run capacitor has failed
2. Open circuit in compressor start wiring or connections
3. Compressor start winding is damaged
1. Open circuit in compressor run wiring or connections
2. Compressor run winding is damaged
1. Compressor contactor has failed closed
2. Thermostat demand signal not connected to module
1. Control circuit transformer is overloaded
2. Low line voltage (contact utility if voltage at disconnect is low)
9 2 - 1 0 1 5 3 4 - 0 3 - 0 0