Raypak 910500 Owner's Manual And Installation Instructions page 15

Error Item
OUTLET SEN
LIMIT SEN
INLET SEN
GAS PRESS
IGNITION
LIMIT TRIP
FLAME
ID CARD
IGN CTRL
DELTA T
LOW 24VAC
BLOW SPEED
LED Error Code Listing
Active errors detected are indicated by LED lights on the PIM™.
LED Code Error Mode
Off Normal Operation
Red LED ID Card Fault
steady ON,
Green Power
LED OFF
Steady ON Internal Control
Failure
1 flash N/A
2 flashes False Flame Error
3 flashes Ignition Lockout
Fault
4 flashes N/A
5 flashes Low Voltage Fault
6 flashes N/A
7 flashes Hi-Limit Fault
8 flashes Sensor Fault
9 flashes N/A
10 flashes N/A
11 flashes N/A
12 flashes N/A
13 flashes Hi-Temperature
Delta Fault
14 flashes Ft-Bus
Communications
Fault
15 flashes Safety circuit open
Description and Troubleshooting
Check the outlet water sensor and its wiring.
Check the high limit sensor and its wiring.
Check the inlet sensor and its wiring.
Check PIM™ wiring.
Reset control, push and release RESET button
Water heater temperature tripped the high limit.
False flame detected. Shut off gas supply, recycle power.
Identity card, check ID card and wiring.
Internal control fault. Reset power, replace control.
Temperature difference between the inlet and outlet
exceeded the set point. Check water flow.
Low 24 VAC power. Check power supply wiring and
transformer.
Blower speed out of range. Check blower wiring and blower.
Table 2: Error Display
Recommended Troubleshooting
Check that the proper ID card is securely connected. Perform
a power and system restart.
Perform a power and system reset. If fault remains, replace
PIM™.
N/A
Check for proper gas valve closure. Clean burner and
electrodes.
Check the gas supply. See table for more information.
N/A
Check the 24 VAC input voltage. The voltage must be above
18.0 VAC.
N/A
Check for proper water flow. Check hi-limit and outlet sensor.
See VERSA for fault identification. Check sensor wiring. Refer
to Table 4 for sensor resistance values
N/A
N/A
N/A
N/A
Check pump operation. Confirm proper water flow across heat
exchanger.
Verify VERSA is connected and operating. Check the cable
between the VERSA and PIM™.
Confirm all safeties are functioning normally. Check continuity
at J8, pins 5 and 6 at the PIM™.
Table 3: PIM™ LED Error Codes
15