TM018 Raypak 131 Type A Pool & Spa Heaters REV: A
D.O.I: 8/04/2009
This document is stored and maintained electronically by
Service. All printed copies not bearing this statement in RED are deemed “uncontrolled”
18
Fault Indication
The control board constantly monitors the status of the water temperature probe and solar
temperature probe if fitted (black boards only). If a malfunction has been detected, the
control board will display the following error codes to indicate the fault condition:
Fault
Black Board
Grey Board
Heater rework required *
F1
N/A
Water temperature probe open circuit
F2
OC
Water temperature probe short circuit
F3
SC
Solar thermistor probe short circuit
F4
SS
Water pressure switch contacts open
o
N/A
No mains power
PO
N/A
* F1 fault previously indicated an over temperature condition. This fault condition is no
longer applicable due to wiring changes. If a F1 fault occurs contact Rheem Service.
Water Pressure Switch Indication (black boards only):
If the
water pressure is low or there is no flow through the heater, the
water pressure switch contacts will open. If an open circuit
pressure switch condition is detected power will be removed from
the gas valve and the pilot and burner will shut down (if on).
If the
controller is set to „On‟ or „AUTO‟ and the water pressure switch contacts are open, a
small „o‟ will be shown to the left of the temperature display.
No Mains Power Indication & Power Backup (black boards only):
The controller (and
remote controller if fitted) has a super capacitor power backup to keep the time of day
clock operating, maintain any programmed time periods and remember the last operating
mode if mains power is lost (or power supply to control board is lost).
Whenever mains power (or control board power) is lost, the
controller will disable all control relays and backlight and enter a
power saving mode which will maintain the time of day and any
programmed time periods for between 1.5 to 2 hours. During a
period of „no power‟ the LCD will display „PO‟.
If power is restored before the expiration of the power backup time, the controller will
resume its last operating mode.
Pool/Spa Heater Run Time:
The controller records and stores the
number of hours the heater has been operating up to a total of
19990 hours. Run time information can be displayed on the LCD by
pressing and holding down the
AUX
button for 10 seconds whilst
the controller is in
„OFF‟ mode.
The displayed hours must be multiplied by 10 to calculate the actual number of hours the
heater has been operating. In the example shown above the heater has been operating for
a period of 88 X 10 = 880 hours (880
– 889 hours). Note: If „0‟ is displayed the heater has
been operating for 0
– 9 hours.
