U.S. Boiler Company PVG3, Инструкция по установке, эксплуатации и обслуживанию

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44
X. TROUBLESHOOTING (continued)
IQ Boiler Control Error Codes (when
"
Err
"
is flashing)
Display
Status Boiler / Control Action(s)
Blank Boiler and Circulator off No 120 Vac power at boiler, check breaker and wiring between breaker panel and boiler.
Err 2
Pressure Switch Failed
to Open
While the blower is “off” the pressure switch failed to open (contact stuck closed).
- Check wiring
- Kinked or blocked pressure switch tubing
- Defective pressure switch
Err 4
Flame Current Lower
than Threshold
Check pilot assembly. Refer to Troubleshooting Section, 6
Err 6
Flame Sensed Out of
Normal Sequence
Flame sensed out of normal sequence (before opening gas valve or after closing gas
valve). Check gas valve operation.
Err 18
Electronics Failure Cycle power to control. Replace control if problem persists.
Err 23
Flame Sensed During
Pre-Purge
Flame sensed during post-purge (before gas valve signaled open). Check the gas valve
for proper operation. Replace gas valve is problem persists..
Err 29
Pressure Switch Failed
to Close
While the blower is “on” the pressure switch failed to close.
- Connect manometer to pressure switch. Is differential pressure greater than minimum,
replace pressure switch.
- Check if tubing is securely connected to canopy
- Check if tubing is free of cracks or holes or condensate
- Check for blockage in vent/air intake system
- Vent system not installed in accordance with installation manual
- Wind at horizontal vent terminal in excess of 40 mph
- Replace blower
Err 32
Temperature Sensor
Failure
Temperature sensor or interface failure (open or short connection, increased connection
resistance, dual sensor mismatch) or control hardware failure.
Err 35
Duplicate Zone Alarm Refer to IQ Zone Panel Instructions.
Err 57
Flame Rod Shorted to
Burner Ground
Flame Rod shorted to burner ground, this can result from excessive flue gas
condensation.
- Check for excessive condensate, dry pilot. Adjust setpoint higher.
- Check for loose or damaged ignition wire.
Err 58
AC Line Frequency Error AC Signal is too noisy or frequency is incorrect. Check supply voltage.
Err 59
Line Voltage Error AC voltage out of specification high or low. Check supply voltage.
Err 60
Thermostat Input Higher
than Threshold
Check thermostat wiring.
Err 61
Line Voltage Unstable
Possibly too many heavy loads switching on and off cause erratic supply voltage. Check
supply voltage.
Err 63
Soft Lockout - Maximum
Recycles Exceeded
Maximum number of recycles exceeded. Refer to Troubleshooting Section, 5.
Err 64
Soft Lockout - Internal
Failure
The electronics has detected an error. This can be caused by an actual controller internal
fault or wiring fault:
- Check pilot assembly,
- If problem persists, replace the control.
Err 89
Communication Lost Check wiring between control and IQ Zone Panel or IQ Reset Card.
Use Control Display
ERR
(error) Number To Direct TroubleShooting Efforts
If the control detects an error it will flash “
Err
” (error) followed by a number. Use this number to identify the boiler problem
and corrective action in the table below. If there is no Err display proceed to next Section: