"(1) 9k, 12k Models(Cooling Only,

Cooling & Heating)

Hazardous voltage can cause ELECTRIC SHOCK or DEATH. Turn off circuit breaker before you start checking or servicing.

1.To remove the Grille from the Chassis

"Set the up-and-down air discharge lower to open position (horizontally) by finger pressure.

"Remove the securing screws.

"To remove the Grille, pull the lower left and right side of the grille toward you (slightly tilted) and lift it straight upward.

2.To remove the Control Box

"Remove the thermisters. One from thermistor holder on evaporator, the other from pipe holder.

"Remove step motor connector, motor connector from main P. C. B.

"" If necessary, disconnect DC power supply cord from pillar terminal, and remove the clip screw.

(Be careful not to lose the clip when reassem- bling)

LEOý

Screw

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Image 43
Heat Controller MSS-018B/A, MSH-0186/A Cooling & Heating, Remove the securing screws, To remove the Control Box, Screw