Maytag 111990" Automatic Dryers Service Manual page 25

6. Check for continuity across these
terminals. No continuity, replace
transformer. If checking resistance
there should be about 42 ohms
across primary leads.
Secondary Side:
CAUTION - - - - - - - - - - ,
Always disconnect power supply
before making continuity or resist-
ance checks.
1. Check for continuity on secondary
windings. NOTE: The resistance
values of the secondary windings
are small and may not be detectable
unless using a digital meter. These
are approximate values: Y-BK to
Y-BK 2 ohms, W-OR to W-OR 1
ohm and PK to PK 5 ohms.
2. Remove wire connectors Y-BK and
Y-BK from secondary winding.
3. Check for continuity across termi-
nals on this secondary winding. No
continuity, replace transformer.
4. Remove wire connectors W-OR, BU
and W-OR from secondary winding.
5. Check for continuity from BU to both
W-OR terminals. No continuity,
replace transformer.
CAUTION
6. Remove wire connectors PK and PK
from secondary winding.
7. Check for continuity across termi-
nals on this secondary winding. No
continuity, replace transformer.
Voltage checks on the secondary
windings.
CAUTION:
Use extreme care when checking
voltage.
1. Attach meter leads across terminals
Y-BK and Y-BK on secondary
winding. Should see 20.7 VAC, no
voltage replace transformer if
primary and power supply check
okay.
2. Disconnect power supply.
A. Remove wire connectors W-OR,
BU and W-OR from secondary
winding.
B. Attach meter leads across termi-
nals W-OR and W-OR on secondary
winding.
C. Connect power supply. Make
voltage check. Should see 3.8 VAC
across W-OR and W-OR (1.9 VAC
from BU to either of the W-OR termi-
nals), no voltage, replace trans-
former if primary and power supply
check okay.
Always disconnect power supply before making any continuity checks or
resistance readings.
ED/GD401 1090
SECTION 2. ELECTRICAL - MECHANICAL TROUBLESHOOTING
2-13