New Yorker CG-E SERIES, Installation, Operating And Service Instructions

24

X. Troubleshooting

A.

  BEFORE TROUBLESHOOTING

   The following pages contain troubleshooting tables for 

use in diagnosing control problems.  When using these 

tables the following should be kept in mind:
1.  This information is only meant to be used by 

a professional heating technician as an aid in 

diagnosing boiler problems.

2.  In general, these tables assume that there are no 

loose or miswired electrical connections.  Before 

using these tables inspect all electrical connections 

on the boiler to make sure that they are tight.  Also, 

check the wiring on the boiler against the wiring 

diagram in Figures 9 and 10.  Ensure that incoming 

120 Vac power polarity is correct and that the boiler 

is properly grounded. Further, ensure that the control 

power supply is 24 VAC (minimum 18 VAC to 

maximum 30 VAC) and polarity is correct.

4.  All controls on the CG-E Series are tested at least 

once in the manufacturing process and a defective 

control or component is generally the least likely 

cause.  Before replacing a component, try to rule out 

all other possible causes.

5.  When checking voltage across wiring harness pins 

be careful not to insert the meter probes into the 

pins.  Doing so may damage the pin, resulting in a 

loose connection when the harness is reconnected.

Table 3:  Troubleshooting Using the Control's LED

Flashing  LED

Fault Condition

POWER

     Steady 1 Hz flash

     Flash code 2

     Flash code 3

     Flash code 4

     Flash code 5

     Flash code 6

Reverse polarity of 115 VAC supply voltage

Faults internal to microprocessor (RAM, ROM, etc.)

Unused

Unused

Water thermistors disagree

Gas valve outputs in improper state

POWER + TSTAT/CIRC

48 volts on Thermostat circuit

DAMPER

Damper switch opened after it had  been proved closed.  Continues flashing until demand for heat 

removed or Damper switch proven closed in ignition sequence.

POWER + DAMPER

Damper switch stuck open or closed (control in damper switch lockout)

LIMIT

Fault detected in temperature sensing hardware

FLAME

Flame loss, or flame not sensed during trial for ignition.  Continues flashing until either flame is 

established or demand for heat is removed.

POWER + FLAME

Flame sensed without call for heat or out of sequence during ignition trial.

Lockouts

1.  Lockout from internal hardware faults (listed above under POWER) automatically resets after the hardware fault has 

not been present for 60 minutes.  Lockouts from internal hardware faults may not be manually reset except by removing 

power from the control.

2.  Lockout from damper switch failing to close within 45 seconds automatically resets after 60 minutes.  Lockout may be 

manually reset by opening the thermostat for more than 2 but less then 20 seconds.