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: DNQ Re: Code 2 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 displayed...

Package Unit: DNQ Re: Won't Ignite / Code 5 The sparker ignites the pilot but never senses flame to energize the main gas valve, and the control board shows no fault codes. The DNQ package unit has two control boards, an Ignition Control Board (ICB) and a CFM Control Board (CFMCB). The...

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: DNQ Re: Variable Speed Blower Not Running - Cooling The unit is calling for either Fan or Cooling, but the indoor blower is not operating. Qty Possible Causes: 1 Bad Blower Motor Bad Control Board CHECKOUT: 1. Check Operation Make sure the...