Hobart DRO2GH manual Verify Ignition Module Safety Lockout Functions - cont

Verify Ignition Module Safety Lockout Functions - cont.

C.Verify that draft inducer motor stops running.

D.Verify contactor 4 CON de-energized (Fig. 14).

E.Verify burner shuts down.

F.If burner shuts down, proceed to step H.

G.If burner did not shut down, the draft inducer (stack fan) pressure switch malfunctioned; contact your local authorized Hobart office for service.

H.Energize draft inducer (stack fan) by switching on CB2 breaker (Fig. 13).

I.Verify that draft inducer (stack fan) motor starts running.

J.Verify contactor 4 CON energized (Fig. 14).

K.Verify that controller is calling for heat.

L.Verify that burner is operating after 30 second purge cycle.

M.If the burner is operating, proceed to step 6.

N.If the burner is not operating, the draft inducer (stack fan) pressure switch malfunctioned; contact your local authorized Hobart office for service.

Fig. 14

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