York Package Units: DNH/DNQ/DNP Re: Lockout Codes While in lockout, the control board keeps the pilot gas valve, main gas valve and induced draft motor de-energized. Lockouts due to failed ignition or flame losses may be reset by removing the call for heat (W1) for more than 1 second, but...

Package Unit: DNH / DNQ Re: Code 9 There are 2 control boards on this unit, a CFM Selector Board (CFMCB) which controls the variable speed blower motor and an Ignition Control Board (ICB). The ICB controls the inducer fan, spark ignition and gas valve. All heating diagnostics will be...

York Package Unit: DNH Re: Cooling - Indoor Coil Frozen The unit is operating in the cooling mode. The compressor and condenser fan motor are operating and the suction line to the compressor and indoor coil are frozen. Qty Possible Causes: Bad Blower Motor Bad...

York Package Units: DNH Re: Pilot Lights but Burners Won't Ignite These package gas/electric units use a Honeywell Smart Valve for ignition. Sequence Of Operation On a call for heat, the fan timer board starts the inducer fan motor and sends 24V through the pressure switch to the Smart...

York Package Unit: DNH Re: Indoor Blower Not Operating Qty Possible Causes: Bad Blower Motor Bad Blower Capacitor Bad Blower Wheel Bad Control Board CHECKOUT: 1. Check Line Voltage Check for 230VAC at the compressor contactor inlet. ...