Grindmaster AT-TC/AT-TCE Troubleshooting Guide, Problem Possible Source Check Solution

TROUBLESHOOTING GUIDE

Problem	Possible Source		Check		Solution
No Hot Water	1.	Tank heater	1.	Check the voltage at the tank	1.	(A) If correct voltage is present at the tank heater
				heater terminals. Voltage should be		terminals and water is not being heated, replace tank
				120V (230V for E models). Check		heater.
				serial tag for proper voltage.		(B) If voltage is not present at tank heater terminals,
						refer to step 2.
						(C) If incorrect voltage is present at tank heater
						terminals, check voltage at outlet.
	2.	Hi-limit thermostat	2.	Check the voltage between the	2.	(A) If voltage is present on incoming terminal on the
		or main thermostat		white wire on the tank heater		hi-limit thermostat but not on the outgoing terminal,
				terminal and the incoming terminal		replace hi-limit thermostat.
				(black wire) on the hi-limit		(B) Check voltage between black and white wire on
				thermostat, then the outgoing		receptacle. If voltage is not present check outlet or
				(black wire) terminal on the hi-limit		circuit breaker.
				thermostat.		(C) If voltage is not present on incoming terminal of
						hi-limit thermostat, replace main thermostat.
Steaming or	1.	Main thermostat	1.	Thermostat contact stuck or out of	1.	(A) Adjust thermostat to lower temperature setting.
Spitting Around				calibration		(B) Thermostat should be calibrated or replaced.
Funnel	2.	High altitude	2.	For altitude above 5,000 feet (1,500m)
Dripping	1.	Not siphoning properly	1.	Water should flow from sprayhead freely	1.	(A) Clean sprayhead holes
						(B) Check tightness of sprayhead tube.
						(C) Check brass elbow in tank for debris
	2.	Leaky fill valve	2.	Turn off water supply to see if	2.	Replace or repair inlet valve as needed
				dripping stops
Dry Coffee	1.	Filters	1.	Are correct filters being used	1.	Use correct filter
Remaining on	2.	Not siphoning properly	2.	Refer to “dripping” step 1	2.	Refer to “dripping” step 1
Brew Basket	3.	Improper loading of	3.	Filter and coffee in brew basket	3.	Filter should be centered in brew basket and
		brew basket				coffee bed should be level.
Warmer Station	1.	Warmer - defective	1.	Voltage at warmer terminals should	1.	If voltage is present on terminals, but warmer is
				be 120V (230V for E models).		not heating, replace warmer.
	2.	Warmer On/Off switch	2.	If voltage is not present on warmer	2.	If switch does not make and break continuity
				terminals, check continuity of switch		when turned on and off, replace switch.
	3.	Bad harness	3.	Check connections between harness	3.	All connections should be tight.
				and switch, and between switch and
				warmer.
Overflowing	1.	Receiving container	1.	Operating instructions	1.	Always start brew cycle with empty container.
		not completely empty
		at start of brew cycle.
	2.	Not siphoning properly	2.	Refer to “dripping” step 1.	2.	Refer to “dripping” step 1.
	3.	Adjust timer	3.	Check valve on-time with watch	3.	Refer to “Brew Volume Adjustment” section
Low Pot Level	1.	Adjust timer	1.	Check valve on-time with watch	1.	Refer to “Brew Volume Adjustment” section
Excessively Long	1.	Lime scale build-up	1.	Remove spray head deflector and check	1.	Delime machine.
Brew Times				nozzle.
Little or No Water	1.	Lime scale build-up	Be sure water is turned on.		1.	Delime heat exchanger.
From Faucet	2.	Clogged inlet valve			2.	Replace or repair inlet valve.

If you still need help, call an authorized dealer in your area or Grindmaster Corporation’s Technical Service Department. You can reach Technical Service at (502) 425-4776 or (800) 695-4500 (USA and Canada only) Monday - Friday, 8:00 AM - 8:00 PM EST.

Please have the model and serial number ready so that accurate information can be given.

Prior authorization must be obtained from Grindmaster Corporation’s Technical Service Department for all warranty claims.

Page 12 Auto Series Brewer Manual