Raypak 5000.72A, Installation & Operating Instructions Manual

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Error Message Description Recommended Troubleshooting
OUTLET SEN Heater outlet sensor fault Check outlet sensor
Check outlet sensor wiring
LIMIT SEN High limit sensor fault Check limit sensor
Check limit sensor wiring
INLET SEN Heater inlet sensor fault Check inlet sensor
Check inlet sensor wiring
VENT SEN Vent sensor fault Check vent sensor
Check vent sensor wiring
INTERLOCK Factory installed jumper in place when shipped. Check louver end switch & wiring
Check combustion air damper end switch & wiring
Check extractor & wiring
WATER PRESS Water pressure switch fault (if equipped) – Raypak
factory installed jumper in place if not shipped with
water pressure switch Verify wiring at J1 terminals 6 & 7
Check heater pump
Check isolation valves
AIR PRESS Air pressure switch fault (if equipped) – Raypak factory
installed jumper in place if not shipped with air
pressure switch Verify wiring at J8 terminals 2 & 4
Check blower(s)
Check air pressure switch tubing
GAS PRESS Gas pressure switch fault (if equipped) – Raypak
factory installed jumper in place if not shipped with high
pressure switch and/or low gas pressure switch Verify wiring at J8 terminals 1 & 3
Check gas pressure switches
Check gas pressure
Check gas pressure switch tubing
IGNITION Ignition fault Reset ignition control – Push either RESET button on membrane
switch or reset button on PIM™ or recycle power
LIMIT TRIP Boiler outlet temperature tripped the high limit
Push reset button on high limit control if Manual Reset High Limit
tripped
Wait for water temperature to drop and auto reset high limit will reset
Check pump operation
Check bypass (if equipped) for too much water flow
FLAME Flame detected without call for heat Shut off gas supply
Recycle power
Check gas valve leakage
ID CARD Invalid/missing ID Card Connect ID Card mounted in heater
Contact the factory if “Invalid ID Card” is noted
IGN CTRL Internal PIM™ control fault Recycle power – if error continues to occur, replace PIM™
DELTA T Threshold Delta T temperature exceeded Check pump operation
Check Delta T setting
Check bypass (if equipped) for too much water flow
LO HSI CUR Low HSI current at PIM™ control Check HSI current
Replace HSI
Replace PIM™ control
LOW 24VAC Low 24VAC power at PIM™ control Check power supply
Check transformer
BLOW SPEED Blower speed (rpm) out of range Check power supply
Check blower wiring to PIM™
Check blower type
SAFETY INPUT Additional factory installed safety fault – see Product
I&O manual for specific information relating to this Verify wiring at J8 – terminals 5 & 6
Table Q: Error messages generated from the PIM™ but displayed on the VERSA IC
®
Display