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Automatic temperature control board, Automatic temperature control board -4 – Maytag Atlantis User Manual

Page 74

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A point to point continuity check can be made
to isolate the trouble either in the timer, wiring

harness, or other electrical components after

the circuit has been traced.

Figure 8-2

SL281TIF

AUTOMATIC TEMPERATURE CONTROL BOARD

The temperature control board receives in­
formation from the water temperature switch

as to the user's water selections. The ther­
mistor located in the water valve, provides
inputs to the board, as to what temperature
the incoming water is. This information com­

bined with the selections on the temperature
control switch determines the output signals

to the water valve.

The target cold temperature is a 75° F., plus or

minus 5° F. Targeted Warm temperature is 95°
F, plus or minus 5° F.

Keep in mind that the control system is in­

tended to warm wash fills when necessary to
the target temperature. It will not cool a fill
when the inlet temperatures exceeds the mini­

mum target temperatures.

Temperature control boards are found on

models

MAV6000,

MAV6057,

MAV7000,

MAV7057, MAVBOOO, MAV8057 and MAV8500
only. Two different types of boards are used
on the washers. An analog temperature board
is used on models MAV6000, MAV6057,

MAV7000 and MAV7057. A microprocessor

temperature control board is used on models

MAV8000, MAV8057 and MAV8500.

Analog Temperature Control Board

The analog board, depending on the water
temperature selected, will monitor the water
temperature and will turn the valves ON and

OFF to maintain proper water temperature.

When the water temperature is set on Warm,

both valves are on. The longer the valve is ON,

the cold water temperature in the water lines

eventually drops lower and lower.

16009485-01

Section 8. Electrical Components & Testing

©1999 Maytag Appliances Sales Company

8-4