Status And Diagnostics - Rheem Raypak R207A Installation And Operation Manual

Status and Diagnostics

The digital models are programmed to display a variety
of status and diagnostic messages, depending on the
operating conditions.
The following heat status messages are displayed in Pool,
Spa, and Remote modes when there are no active fault
conditions.
Display
Heating Call for heat established, flame present.
Spark Spark operating.
No Demand Heat demand is satisfied.
Table M. Heater Status Messages - No Active Faults
The following conditions are displayed in Pool, Spa and
Remote modes when there are active fault conditions.
Display
Thermistor temperatures disagree by
Sensor Failure
more than 2°F (1°C)
Thermistor sensor failed open. Below
Sensor Open
-20°F (-29°C).
Thermistor sensor failed short. Above
Sensor Short
217°F (103°C).
Board is sensing flame when
Flame w/o CFH both main and pilot valves are
commanded shut.
Main gas valve output is not in
MV Output Fault
commanded state.
Voltage is sensed at the Lo NOx
Lo NOx Tab Fault terminal on a non-Lo NOx Heater (Lo
NOx tab is intact)
Internal Fault Board fault, replace board.
Memory fault, reset set points,
EEPROM Fault
replace board if fault does not clear.
Time clock/fireman switch circuit is
Clock/Fireman Sw
open.
Low Temp
Water temperature below 36°F (2°C).
Lockout
Table N. Heater Status Messages - Active Faults
Condition
Condition
The following conditions are displayed only while there is a
demand for heat present.
Display
Water Sw Open Water pressure switch open.
Vent/Field
Vent spill switch/field switch #1 open.
Sw #1
Hi Limit 1 Fault High limit 1 open.
Hi Limit 2 Fault
High limit 2 open.
Rollout Sw Open
Rollout switch open.
Field-supplied flow switch/field switch
Flow/Field SW #2
#2 open.
3 fan switch faults within same heat
Fan Lockout demand cycle, power must be cycled
to clear the fault
Heater shut down for 5 minutes
Fan 5 Min Delay
because LoNOx fan switch didn't close
Alternating with "No pilot sensed"
- Pilot flame not established within the
Ignition Lockout
required time (15 sec or 90 sec).
(Propane Tab
Alternating with "Main Ign Failure"
Broken)
- Pilot flame lost during the 8 second
trial to ignite the main burner.
Ignition Failure Alternating with "No pilot sensed"
(Propane Tab Not
- Pilot flame not established within 90
Broken) seconds.
Alternating with "Main Ign Failure"
Ign 6min Delay - Pilot flame lost 4 times within the 8
(Propane Tab Not second trial to ignite the main burner.
Broken) Heater will lockout for 6 minutes before
retrying.
Table O. Heater Status Messages - Demand for Heat
Condition
27