108
Corrections
34.4.1 If terminals 1 and 2 do not each read
approximately 110 volts to ground then
there is a problem with the line voltage
wiring going to the SSR
34.4.2 If a voltage of 208 volts is present then
the SSR needs to be replaced. If the
voltage is still incorrect then the problem
is with the line voltage wiring going to
the SSR.
34.4.3 If terminals 1 & 2 do not read
approximately 110 volts to ground then
there is a problem with the line voltage
wiring going to the SSR. If the voltage
reading across terminals 1 and 2 is higher
than 5 volts then replace the SSR.
Possible cause check-up and tests
34.4.1 For 220 volt units (single or three phase),
with the device in question in the OFF
mode (pressing the PROGRAM KEY to
display the date and time will turn the
heaters off) a voltage reading from
terminal 1 to ground will read
approximately 110 VAC. A reading from
terminal 2 to ground will read
approximately 110 VAC. A reading
across terminals 1 & 2 should show
208VAC.
34.4.2 If a voltage of 208 volts is not present
across terminals 1 & 2 then unplug the
unit and remove the wires. Plug the unit
back in and carefully take a reading
across the wires
34.4.3 With the device in the ON mode a
voltage reading from terminal 1 to
ground will read approximately 110 volts
AC. A reading from terminal 2 to ground
will read approximately 110 volts AC. A
reading across terminals 1 & 2 should
show a voltage near 0 volts AC
10. TROUBLESHOOTING (cont.)
10.4 In Process Malfunction (cont.)
Symptom
34 Testing the Solid State
Relay (cont)
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