T
r o u b l e s h o o T i n g
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r e e s
• E
l E c t r i c
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o m b i t h E r m
c
o m b i
t
o u c h
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E c h n i c a l
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E r v i c E
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a n u a l
• D 8
T r o u b l e s h o o T i n g T r e e s
E S / E S I / E S G — E - 3 / E - 4 F a n M o t o r E r r o r
Is the convection fan motor
operating when the error
code occurs?
See “No Convection Motor
Operation”.
No
Yes
Is the hall effect sensor
(HES) registering a motor speed
(Approximately 1500 for high speed
and approximately 700
for low speed)?*
Test HES connection points and
ensure HES wires are installed
on the appropriate terminals of
the low voltage relay board.
Is there 10 VDC across
the Red-Brown HES wires
when the motor
is stopped?
Is there 3-5 VDC across
the Red-Brown HES wires
when the motor
is running?
Replace faulty motor
due to failed HES.
If E3 continues to display,
contact Alto-Shaam factory
Technical Support.
No
Yes
No
Yes
Yes
No
*Note: This can be seen in the service remote
control. Test Clock Wise and Counter Clock
Wise rotation as well as high and low speeds.
The speeds should closely match.
Confirm 12 VDC to LRB. If voltage
is present, replace relay board.
Summary of Contents for CombiTouch 7.14es
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