Maytag Atlantis - Manual (Page 80)

TIMER LINE SWITCH INPUT
The finger tip faucet is the only control board
function that will operate with the timer knob
pushed in. This is monitored through cam 0
of the timer. Line voltage is routed through
the timer and when the timer knob is pulled
out, cam 0 closes and routes line voltage to a
1/4" spade terminal labeled Timer Sense on
the temperature control board.
TEMPERATURE CONTROL BOARD TEST
PROCEDURE(MAV8000, MAV8057 &
MAV8500)
This procedure exercises all circuit board in­
puts and outputs such as thermistor, tempera­
ture signal light and audible signal. The only
exception is the connection to the "WHEN TO
CHIME" cam of the timer.
1. Turn Temperature Control OFF. Check fill
in both wash and rinse at each of the vari­
ous temperature settings for proper opera­
tion. This checks outputs of the tempera­
ture option switch and the water valve so­
lenoids. If all are OK, proceed to step 2.
Note: if a mistake is made in executing
the following sequence, it may be repeated
at any time by returning to step 2.
2. Confirm that the Temperature Control
Switch is OFF, End-of-Cycle Signal Switch
is OFF. Note: The timer can be set to any
position.
(Steps 3 through 9 must be accomplished
within 20 seconds from start to finish.)
3. Press and release the FINGER FAUCET
switch. (Water will flow for 7 seconds un­
til step 9 is complete, presuming the pres­
sure switch is not satisfied.)
4. Switch TEMPERATURE CONTROL ON.
5. Switch SIGNAL LOUD SWITCH ON.
6. Switch TEMPERATURE CONTROL OFF.
7. Switch SIGNAL LOUD SWITCH OFF.
8. Switch TEMPERATURE CONTROL ON.
9. Switch SIGNAL LOUD SWITCH ON.
10. End-of-Cycle Signal will sound and the
Temperature Control Indicator Lamp will
light and remain on for 20 seconds.
(Should the Indicator light blink at a fast
rate of 0.2 seconds on, 0.2 seconds off, this
is an indication that the water valve ther­
mistor is either open or shorted.)
WATER VALVE
The water valve is secured to a bracket in­
side the left rear cabinet area by two (2)
mounting screws. The bracket may be re­
moved for service.
The water valve has two solenoids, one on
the "HOT' water side and another on the
"COLD" water side. These solenoids are en­
ergized through the timer, temperature con­
trol board (MAV6000, MAV6057, MAV7000,
MAV7057, MAV8000, MAV8057 and
MAV8500) and water temperature selector
switch and will allow COLD, HOT or WARM
(a mixture of HOT and COLD) water to enter
the tub as directed.
Testing Water Valve
The water valve can be accessed by raising
the top. The valve can be tested using an
ohmmeter and performing the following:
1. Disconnect power to the unit.
2. Remove all wiring from the solenoid(s)
being tested.
3. Place the test leads across the terminals
of the solenoid being tested. The meter
should indicate continuity. --
16009485-01 Section 8. Electrical Components & Testing
©1999 Maytag Appliances Sales Company
8-10