Bunn FMD-1 FMD-2 service manual TROUBLESHOOTING cont, Problem, Probable Cause, Remedy

TROUBLESHOOTING (cont.)

PROBLEM

PROBABLE CAUSE REMEDY

Water is not hot (Cont.)

Spitting or excessive steaming

4. Tank Heater Switch

1. Lime build-up

CAUTION - Tank and tank compo- nents should be delimed regularly depending on local water conditions. Excessive mineral build-up on stain- less steel surfaces can initiate corro- sive reactions resulting in serious leaks.

Refer to Service - Tank Heater Switch for testing procedures. See page 38

Inspect the tank assembly for exces- sive lime deposits. Delime as re- quired.

2. Control Thermostat	Refer to Service - Control Thermo-
	stat for testing procedures. See
	page 19

Dripping from dispense tip	1. Lime build-up
	CAUTION - Tank and tank compo-
	nents should be delimed regularly
	depending on local water conditions.
	Excessive mineral build-up on stain-
	less steel surfaces can initiate corro-
	sive reactions resulting in serious
	leaks.

Inspect the tank assembly for exces- sive lime deposits. Delime as re- quired.

2. Dispense Solenoid Valve	Remove the dispense solenoid valve
	and clear any obstructions. Rebuild
	or replace the valve if necessary. See
	page 35
Water flows into tank continuously 1. A) Level Control Board and Probe	Refer to Service - Level Control Board
- FMD-1	and Probe for testing procedures.
	See page 30
B) Control Board and Probe - FMD-	Refer to Service - Control Board and
2	Probe for testing procedures. See
	page 20
2. Solenoid Valve (Inlet)	Refer to Service - Solenoid Valve
	(Inlet) for testing procedures. See
	page 36

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