Paragon 8145-20 Defrost Timer - Answered Questions & Fixed issues

http://waterheatertimer.org/Paragon-timers-and-manuals.html#defrost Link has infromation about paragon 8145-20 240 volt timer gene Water Heater Timers Save Money If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

http://waterheatertimer.org/Paragon-timers-and-manuals.html#8145 If dial is rotating and keeping good time each day, then Trippers might be bad? Test across terminals 1 and N for 240Volt... if you are not getting 240V, the flip breaker fully off and then fully on. Test for 240V again. Temporarily disconnect wire on terminal 4, and then temporarily move wire on Terminal 3 to Terminal 1 and see if your defrost heater is working. Heater might be bad. Disconnect wire on terminal X and see if timer resets. Buy new timer Gene If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

page 20 in the heatcraft refrigeration manual shows how to interface a paragon defrost timer with the t-stat and evaporator coil.

short circuit or bad timer http://waterheatertimer.org/Paragon-timers-and-manuals.html#set Gene If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

Short circuit, or bad timer. http://waterheatertimer.org/Paragon-timers-and-manuals.html#set Gene If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

Is this a hot gas bypass defroster with a switching valve? If so, the compressor should be on.

Copy following links: http://waterheatertimer.org/Paragon-timers-and-manuals.html#set http://waterheatertimer.org/images/8145-work-image.jpg Install defrost trippers on dial at times you want defrost to begin. 8145-20 is generally time initiated, and temperature or pressure terminated... but you can set the defrost duration on smaller center dial..and this setting will terminated defrost cycle mechanically if the pressure or temperature sensor fail. Then manually rotate timer dial until current time lines up with time marker in upper left side. Gene h. If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

Copy following link to identify defrost timer.http://waterheatertimer.org/Paragon-timers-and-manuals.html#defrostAdd a comment and say which defrost timer you have, which voltage and phase the incoming line If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

1) Copy following links:http://waterheatertimer.org/images/8145-work-image.jpghttp://waterheatertimer.org/Paragon-timers-and-manuals.html#defrost2) Typically the 8145-20 defrost cycle is time-initiated and starts when tripper pin located on outer part of dial passes the time-of-day point.Defrost cycle terminates or ends when pressure or temperature switch activates. This is also called the cycle limit switch.http://waterheatertimer.org/images/8145-20-wiring-600.jpg3) So your situation sounds like the pressure or temperature switch is not working correctly.4) The 8145 timer also has 'time termination' setting. This red tripper is located on inner part of dial. Usually the 'time termination' is used as back-up system if the pressure or temperature switch fails so that defrost cycle will not continue melting everything in freezer.5) To solve problem until pressure-temperature switch is replaced, you can disconnect wire on terminal X, and then set 'time termination' for correct length of time by experimenting. If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

If the air flow and temperature are not being compromised leave it alone. If there is a gradual build up of ice on the evaporator you may have a defrost element or defrost limit switch problem. Set the defrost duration duration to 45 minutes and see if that solves the icing problem. 4 defrost cycles a day should be enough to keep the icing problem at bay. 3 defrost cycles at night about 1 hour apart may also remedy the problem. Experiment until you find the right combination of defrost cycles for your freezer. Watch for any thawing of the product in the freezer and adjust accordingly.
Bills Refrigeration/Montana.

Copy following link for defrost timers:http://waterheatertimer.org/Paragon-timers-and-manuals.html#defrostThere are 2 general types defrost timers.Time activated - Time terminatedTime activated - Temperature-pressure terminated, with timed termination back-upHere is basic image:http://waterheatertimer.org/images/8145-work-image.jpgRotate dial until current time lines up with pointer, insert tripper pin on outside edge of dial to select defrost start-time, move defrost duration tripper on inner dial to set termination time.Each defrost timer is slightly different:If timer is time-terminated, then wiring follows certain diagram.If timer is temperature-pressure terminated, then different wiring diagram is used. If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

10-19-12Each timer has a contactor.Timers can also control a contactor.Which timer do you have?Here are contactors, with some illustrations showing tiimers controlling contactor:http://waterheatertimer.org/H230A.htmlHere are example timers controlling a 3-pole contactor for 3-phase application:http://waterheatertimer.org/How-to-install-3-phase-timer.html If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

Which defrost timer do you have?Do you have time or temperature termination?What voltage are you working with?http://waterheatertimer.org/Paragon-timers-and-manuals.html#defrost If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

Copy following links for general illustration for magnetic contactors:http://waterheatertimer.org/H230A.htmlhttp://waterheatertimer.org/images/Dawn-dusk-120Volt-pump22-28.jpghttp://waterheatertimer.org/How-to-install-3-phase-timer.html If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

Unsure what you are trying to do.Open following link to see how this timer works and how to wire it.http://waterheatertimer.org/Paragon-timers-and-manuals.html#8145If you want to by-pass defrost cycle, remove trippers from dial and timer will not enter defrost state.Or remove wire that is connected to terminal 3.

8145-20 is 240Volt defrost timer:
http://waterheatertimer.org/Paragon-timers-and-manuals.html#8045

You are testing the 8145-20 timer.
The timer dial should rotate continuously. Trippers on dial rotate around. When they reach the trip switch, the timer starts the defrost cycle.
Terminal 3 has power during defrost cycle.
Terminal 4 has no power during defrost cycle.
With 240Volt timer, terminals 1 and 2 and N and X test for live power to ground at all times.

The limit switch is connected to terminal X and to terminal N.
During the defrost cycle, the limit switch measures the pressure or temperature.
When pressure or temperature reaches the set point, the limit switch closes the circuit and this trips the solenoid inside timer. The solenoid turns off the timer relay, and the defrost cycle ends.
At this point the timer turns off the defrost, and sends power to the refrigeration.
Terminal 3 has no power during refrigeration cycle. (The opposite of defrost cycle).
Terminal 4 has power during refrigeration cycle.
Test these terminals for power to ground. One or the other should have power at all times, but not both.

If timer will not enter defrost cycle, make sure the X-3596 trippers are not worn down.
Disconnect the wire to terminal X and see if defrost cycle will start.
Test terminals 3 and 4 again and see if removing wire from X caused a change.

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5x455 is WW Grainger number for 240Volt time initiated - time terminated Paragon 8045-20 timer.
Open following links to identify timer and download wiring diagram:

http://www.grainger.com/Grainger/PARAGON-Time-InitiatedTime-Terminated-Defrost-5X454?Pid=search
http://waterheatertimer.org/Paragon-timers-and-manuals.html#8045

Thank you for including model number of timer.
Paragon P100 series uses X9242 trippers
http://waterheatertimer.org/Paragon-timers-and-manuals.html

Midnight electric appears to sell X9242 tripper
http://www.midlightelectric.com/firex/acatalog/FIREXPARAGONROBERTSHAW_X9242.html

If that timer motor was available, probably would cost more than $60.00 > new replacement timer costs 130+.
Paragon is no longer making timers and parts for timers except defrost timers.
7008-00 is not defrost timer.
http://waterheatertimer.org/Paragon-timers-and-manuals.html

New 7008-00 timer:
http://www.drillspot.com/products/685951/paragon_7008-00_electromechanical_indoor_7_day_timer
http://www.pexsupply.com/Paragon-7008-00-7-Day-Indoor-Time-2-NO-2-NC-120v

Intermatic timer replacement is 120Volt 7-day T7801B with 2 NO and 2 NC terminals for $105-125
http://www.intermatic.com/~/media/files/intermatic/products/instructions/timers/t7801b%20-%20english.ashx
7008-00 wiring diagram 2
http://waterheatertimer.org/pdf/Paragon-4000-24hr-7000-7day.pdf

http://www.drillspot.com/products/122373/Intermatic_T7801B_Electromechanical_Indoor_7_Day_Timer?s=1
http://www.zorotools.com/g/00055233/k-G2940567?utm_source=google%20shopping&utm_medium=organic&utm_campaign=Google%2BShopping%2BFeed

Open following links for 8145-20 wiring diagram and resources:
http://waterheatertimer.org/images/8145-20-wiring-350.jpg
http://waterheatertimer.org/Paragon-timers-and-manuals.html#defrost

8145-20 is 240Volt defrost timer.
Heat strip and compressor should not activate at same time.
As a general rule heater connects to NO terminal 3 and compressor connects to NC terminal 4
NC terminal 3 compressor is on all the time until defrost cycle begins.
NO terminal 4 heat turns on when defrost cycle begins, and at same time NC terminal 3 compressor turns off.
At then end of the defrost cycle, NO terminal heat turns off and NC terminal 3 compressor turns on again.