Frymaster 2836 Electric Interface Board Diagnostic Chart, Diagnostic LED Legend, Meter Setting

1.12 Electric Interface Board Diagnostic Chart

The following diagram and charts provide ten quick system checks that can be performed using only a multimeter.

			3	2	1
			6	5	4
			9	8	7
			12	11	10
			15	14	13
K1			K2	K3		K4
10	7	4	1		10	7	4	1
11	8	5	2		11	8	5	2
12	9	6	3		12	9	6	3

Note: The sealed relays are replaceable. If a relay fails, the replacement part number is 807-3932.

	Diagnostic LED Legend
CMP	indicates power from 12V transformer
24	indicates power from 24V transformer
HI	(RH) indicates output (closed) from right latch
	relay
HI	(LH) not applicable to Ultimate Electric fryers
HT	(RH) indicates output from right heat relay
HT	(LH) not applicable to Ultimate Electric fryers
AL	(RH) indicates output (open) from right latch
	relay
AL	(LH) not applicable to Ultimate Electric fryers

Meter Setting	Test	Pin	Pin	Results
12 VAC Power	50 VAC Scale	1 of J2	3 of J2	12-16 VAC
24 VAC Power	50 VAC Scale	2 of J2	Chassis	24-30 VAC
*Probe Resistance	R X 1000 OHMS	11 of J2	12 of J2	See Chart
Hi-Limit Continuity	R X 1 OHMS	7 of J2	4 of J2	0 - OHMS
Latch Contactor Coil	R X 1 OHMS	8 of J2	Chassis	3-10 OHMS
Heat Contactor Coil	R X 1 OHMS	9 of J2	Chassis	18-25 OHMS

*Disconnect 15-Pin harness from the computer/controller before testing the probe circuit.

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