FAULT INDICATION
The heater is equipped with self diagnostic capabilities. If a fault is detected, the control
panel display will show a two digit code in the 'Room' area and the power LED will flash red.
In the example opposite the control panel display shows fault code 11.
If an error code occurs the heater will 'lock out' and will not operate until the fault has been
rectified and the heater is reset.
To Reset the Heater:
Switch the heater off at the power point, wait ten seconds then
switch the power point back on. If the fault persists, phone your nearest Rheem Service
department or Accredited Service Agent to arrange for an inspection.
The following table details available codes and their meanings:
Code
Fault Condition
11
Ignition failure (flame rod signal not detected during ignition period)
12
Flame failure (flame rod signal lost 5 times during normal burner operation)
14
Overheat condition – Thermistor detects > 120ºC (105°C PRS-150) and/or thermo switch contacts
open (@120°C) and/or thermo fuse blows (blows @ 216°C)
16
Room temp too high (room temp thermistor detects > 30ºC continuous for 10 minutes)
24
Power switch failure (faulty control panel)
31
Room temperature thermistor abnormal (open circuit or closed circuit)
33
Overheat thermistor abnormal (open circuit or closed circuit)
34
Overheat thermistor abnormal (abnormal temperature drop detected)
51
Gas valve failure (solenoid valve SV0 circuit failure)
61
Combustion fan abnormal (FM1 < required speed ± 20%)
62
Circulating fan abnormal (FM2 < 320 rpm)
71
Gas solenoid valve circuit abnormal (faulty controller internal circuitry)
72
False flame detected (flame rod signal detected prior to ignition period)
73
Faulty or missing gas type card
76
Communication fault between control panel and controller
80
Gas valve failure (solenoid valve SV1 circuit failure)
Possible Causes and Suggested Remedies:
•
Code 11 or 12 can be indicative of incorrect gas pressure or no/intermittent gas supply. Check other gas
appliances to see if they are operating.
•
If code 14 occurs, try cleaning the air filter (refer to "Regular Care" on page 7).
•
If code 16 occurs, reset the heater and check to ensure that the desired set temperature is set from 16 ~ 26°C
and
is not set on 'H'
(refer to “Raising or Lowering the Set Temperature” on page 9).
For all other faults (or if a fault persists) phone your nearest Rheem Service department or Accredited Service Agent.
29
