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A. BOILER ERROR
1. When an error condition occurs the controller will
display an error code on the display module.
2. These error codes and several suggested corrective
actions are included in Table 8.1.
3. In the case of E00, E13, and E14 this error, if
uncorrected, will go into a fault condition as
described is Paragraph B.
B. BOILER FAULT
1. When a fault condition occurs the controller will
illuminate the red "fault" indication light and display
a fault code in the format "F##" on the display
module.
2. Note the fault code and refer to Table 8.2 for an
explanation of the fault code along with several
suggestions for corrective actions.
3. Press the reset key to clear the fault and resume
operation. Be sure to observe the operation of the
unit to prevent a recurrence of the fault.
8. TROUBLESHOOTING
TROUBLESHOOTING
If overheating occurs or the gas supply fails to shut
off, do not turn off electrical power to the circulating
pump.This may aggravate the problem and increase
the likelihood of boiler damage. Instead, shut off the
gas supply to the boiler at the gas service valve.
CAUTION
This appliance has wire function labels on all internal
wiring. Observe the position of each wire before
removing it.Wiring errors may cause improper and
dangerous operation. Verify proper operation after
servicing.
CAUTION
DANGER
When servicing or replacing components that are in
direct contact with the boiler water, be certain that:
●●
There is no pressure in the boiler. (Pull the
release on the relief valve. Do not depend on
the pressure gauge reading).
●●
The boiler water is not hot
●●
The electrical power is off
When servicing or replacing any components of this
boiler be certain that:
●●
The gas is off.
●●
All electrical power is disconnected
WARNING
Do not use this appliance if any part has been under
water. Improper or dangerous operation may result.
Contact a qualified service technician immediately to
inspect the boiler and to repair or replace any part of
the boiler which has been under water.
WARNING
Code Description Duration Corrective Action
E00 High Limit Exceeded 50 Sec.
1. Check circulation pump operation.
2. Assure that there is adequate flow through the boiler by
accessing the status menu and assuring that there is less
than a 50°F rise from the return thermistor to the supply
thermistor.
3. Replace switch if faulty.
E13
Combustion Fan Speed Low.
The boiler combustion air fan speed
less than 70% of expected.
60 Sec.
1. Check the combustion air fan wiring.
2. Replace the combustion air fan.
3. Replace the control board.
E14
Combustion Fan Speed High.
The boiler combustion air fan speed
is more than 130% of expected.
60 Sec.
1. Check the combustion air fan wiring.
2. Replace the combustion air fan.
3. Replace the control board.
PRO Water Pressure Switch Open Until Corrected
1. Assure that the system pressure is above 10 psig.
2. Check for leaks in the system piping.
3. Check the switch operation by applying a jumper. (If the
switch is not functioning properly replace it.)
FLu Blocked Vent Pressure Switch Open Until Corrected
1. Assure that the vent is not blocked.
2. Check the switch operation by applying a jumper. (If the
switch is not functioning properly replace it.)
Table 8.1: P125 Control Board Error Codes