29
NOTE:
Both the POOL and SPA setpoints will revert
back to 65°F (18°C) and the POOL and SPA maximum
temperature settings will be 104°F (40°C). These
setpoints will need to be readjusted to desired settings.
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 temperature at the inlet to the heater may differ
from that observed at a given location in the pool or spa.
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
Condition
Heating
Call-for-heat established, flame present.
Spark
Spark operating.
No Demand
Heat demand is satisfied.
Table O. Heater Status Messages - No Active Faults
The following conditions are displayed in Pool, Spa and
Remote modes.
Display
Condition
Sensor Failure
Thermistor temperatures disagree by
more than 2°F (1°C).
Sensor Open
Thermistor sensor failed open. Below
-20°F (-29°C).
Sensor Short
Thermistor sensor failed short. Above
217°F (103°C).
Flame w/o CFH
Board is sensing flame when
both main and pilot valves are
commanded shut.
PV Output Fault
Pilot gas valve output is not in
commanded state.
MV Output Fault
Main gas valve output is not in
commanded state.
LoNox Tab Fault
Voltage is sensed at the Lo NOx
terminal on a non -Lo- NOx heater
(Lo NOx tab is intact).
Internal Fault
Board fault, replace board.
EEPROM Fault
Memory fault, reset setpoints, replace
board if fault does not clear.
Clock/Fireman Sw
Time clock/fireman switch circuit is
open.
Low Temp
Lockout
Water temperature below 36°F (2°C).
Table P. Heater Status Messages - Active Faults
The following conditions are displayed only while there is a
demand for heat present.
Display
Condition
Water Sw Open
Water pressure switch open.
Vent/Field
Sw #1
Vent spill switch/field switch #1 open.
Hi Limit 1 is open
High limit 1 open.
Hi Limit 2 is open
High limit 2 open.
Rollout Sw Open
Rollout switch open.
Flow/Field SW #2
Field-supplied flow switch/field switch
#2 open.
Ignition Lockout
(Propane Tab
Broken)
Alternating with “No pilot sensed”
- Pilot flame not established within the
required time (15 sec or 90 sec).
Alternating with “Main Ign Failure”
- Pilot flame lost during the 8 second
trial to ignite the main burner.
Ignition Failure
(Propane Tab Not
Broken)
Alternating with “No pilot sensed”
- Pilot flame not established within 90
seconds.
Ign 60 min Delay
(Propane Tab Not
Broken)
Alternating with “Main Ign Failure”
- Pilot flame lost 4 times within the 8
second trial to ignite the main burner.
Heater will lockout for 60 minutes
before retrying.
Table Q. Heater Status Messages - Demand for Heat
High Limit Events
Figure 51. High Limit Events
HIGH LIMIT EVENT NOTICE
High Limit events require a manual-reset:
To reset unit
press MODE.
Helpful tips to prevent High Limit events:
1. Confirm circulation pump is running during heating
cycle.
2. Pump should shutoff a minimum of 5 minutes after
heating cycle ends.
Failure to follow these steps may cause residual heat
buildup - triggering a High Limit event.
If issues persist, contact your service installer.
PRELIMINARY
UNCONTROLLED DOCUMENT IF PRINTED
