Status Codes; Program Modes; Fault Codes - Raypak 185A Replacement Instructions Manual

NOTE: The LCD temperature display may not agree with the temperature reading of your pool or spa thermometer. The
heater reads the water temperature at the inlet. Due to the circulation characteristics of any pool or spa, the water tem-
perature at the inlet to the heater may differ from that observed at a given location in the pool or spa.
DIAGNOSTICS
The digital thermostat models are equipped with on-board
diagnostic controls. If there is a safety fault, a fault code will
be displayed along with a service indication.
If the PRS fault code is displayed, it indicates that there is
insufficient water flow through the heater. Make sure the
pool filter and pump strainer are clean before calling a serv-
ice representative.

STATUS CODES

Display Definition
CFH Call for heat
CLK Time clock
EOL End of line test (Factory Use Only)
LON Low NOx Unit
OFF Off mode
PRO Propane gas configured
REM Remote control activated
SPK Spark
SPR Spare fault code indicator

FAULT CODES

Display Definition
BD1 Board failure
EEP Microprocessor error
FAN Blower pressure failure
FFL Flame sensing when pilot and gas valves are
closed
GVC Gas valve closed
GVO Gas valve open
HL1 High limit switch #1 open
HL2 High limit switch #2 open
IGN Ignition failure
ILO Ignition lockout - Propane units only
PRS Water pressure switch open
ROL Heat roll-out safety switch open
SNS Sensor failure, Water temp. below 36°F or
above 110°F
VNT Vent switch open - This is jumped from the fac-
tory.
Page 13
READING A FAULT
The word "SERVICE" will flash on and off if the PC board de-
tects a known fault. The fault will be displayed in three big
letters on the lower left of the display.
3 Letter
Fault Code
See table
for fault def-
inition

PROGRAM MODES

Display Definition
CCC Celsius setting
F/C Change from Fahrenheit to Celsius
FFF Fahrenheit setting
RES Reset defaults
SET Set point max adjustment
241169
P/N Rev 4
Effective: 10-01-10
Replaces: 09-05-08
Service Will
Flash