Steffes 612EXT Troubleshooting Guide Manuel d'utilisateur télécharger pdf (Page 4)

MODEL: EXT (

2-Mode Circuit Board without Outdoor Sensor)

FUNCTION: Core Charging

PROBLEM: Unit Charges Unevenly

Before starting any procedures listed below, check room thermostat and circuit breaker settings.

NOTE: For cross reference to number coded components, refer to the Exploded View Diagram.

UNIT CHARGES UNEVENLY

Check unit amperage.

Check fans (53) and dampers for

smooth operation.

Check heating elements

(54), charge control

sequencer (49), and

core charging high

limits (33) for proper

operation.

Correct Incorrect

Repair fan/damper

system.

Contact technical

support at the factory

1-888-STEFFES.

Defective

Check input circuit(s).

Repair or replace

defective parts.

Correct Incorrect

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Steffes 612EXT Troubleshooting Guide Manuel d'utilisateur Page 4