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KB Home / Equipment / Rooftop Units / York / Predator DH, DM, / Predator RTU - Heat Control Board - Fault Codes

Predator RTU - Heat Control Board - Fault Codes

Article ID: 240
Last updated: 14 Dec, 2018

York Rooftop Units: DH, DM

Re: Heat Control Board - Diagnostic Codes

There are two control boards on this unit. The main unit controller mounted in the electrical control panel and the ignition control board mounted in the burner section.

► The main unit controller has one diagnostic (Code 9) to indicate a fault from the ignition control board. You must check the ignition control board for the actual fault condition.

Ignition Control Fault Indicators
Pulse
  • Normal Operation
2 Flash
  • Pressure switch open with inducer on
3 Flash
  • Pressure switch closed with inducer off
  • Rollout switch open
4 Flash
  • Limit switch open
  • Aux limit switch open
5 Flash
  • Flame present with gas off
6 Flash
  • Ignition lockout

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Article ID: 240
Last updated: 14 Dec, 2018
Revision: 5
Access: Public
Views: 148
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