COMPRESSOR FAILS TO START l- cotninued

TM9 4120-423-14&P

COMPRESSOR FAILS TO START Continued

(d)

Check voltage across P12 pins D and E, D and F, and E and F (should be 197 to

229 Vac). Remove power. Using wiring diagram, continuity check circuit and

repair or replace as indicated.

TEST OR INSPECTION

Step 3. Check low pressure switch S5.

CORRECTIVE ACTION

(a)

Check continuity through S5. Resistance should be less than 2 ohms.

(b)

If it is less than 2 ohms, proceed to step 4.

(c)

If not, check system pressure at LOW SIDE service valve (See WP0076).

(d)

Switch S5 should automatically reset when pressure rises to 40 psig. Allow time

for pressure to rise and switch to reset. If S5 will not reset, replace it. (See

TEST OR INSPECTION

Step 4. Check compressor motor thermal protector switch S8.

CORRECTIVE ACTION

(a)

Remove power.

(b)

Disconnect P10 connector.

0067 00-3