Question about Amprobe Digital Megohmmeter, Model# AMB-45

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Refrigerator my refrigerator defrosts and leaves a mess on the ref. bottem.

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There should be a drain hose that takes the melted ice (water) out the back and down into a pan under the refrigerator where it evaporates. Check inside the lower part of the freezer for a small hole-it needs to be clear to let the water run through the tube and down into the pan. The tube can usually be disconnected behind the unit to clear it out with a wire or hanger. Good luck

Posted on Feb 03, 2009

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1 Answer

Want to know how to install a d frost o matic model 8145


1) Copy following links for defrost timer resources, explanation, manual, general description and illustrations:
http://waterheatertimer.org/Paragon-timers-and-manuals.html#defrost
http://waterheatertimer.org/images/8145-20-wiring-600.jpg

2) Generally:
Power wires connect to terminals 1 and N.

Heater turns ON during defrost cycle, so heater connects to NO terminal 3, and to terminal N

Refrigeration fan motor is OFF during defrost cycle, and ON during refrigeration cycle, so it connects to terminal 4, and to terminal N.

Limit switch, which is the pressure or temperature sensor, connects to to terminal X and to terminal N. When defrost cycle pressure or temperature reaches set point, the limit switch activates, and this causes 8145 timer to reset, and then defrost cycle ends.

Jan 30, 2013 | Hardware & Accessories

1 Answer

How to wire a paragon defrost timer with liquid line solenoid valve t-stat electric heater for walk in freezer


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

Oct 21, 2012 | Paragon 8145-20 Defrost Timer

1 Answer

Without doing the minimal setting test to see if a time clock works how do you test a time clock with defrost termination the x terminal


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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Sep 14, 2011 | Paragon 8145-20 Defrost Timer

2 Answers

I am looking for a source to replace timer motors and silver contacts on a bunch of paragon 8025 24 hour timers.


http://waterheatertimer.org/Paragon-timers-and-manuals.html#defrost

According to e-mail I got from Paragon in Nov 2010, Paragon is no longer making timers and parts.
Except for defrost timers.

I don't know how narrow the Paragon defrost line has become, if they still making their commercial refrigeration timers, or if they're just making smaller refrigerator defrost timers.
Or if Paragon has parts for the 8025
http://www.uni-line.com/common/custserv.aspx

Jan 12, 2011 | Paragon 8025-00 Enclosed Indoor 24 Hour...

1 Answer

Refrigerator not getting cold what's the problem?


Hi,

Many times a freezer and/or refrigerator do not work right because of a dirty condenser coil...there are also many other things that can go wrong.


If you are hearing a clicking or buzzing then check out the last two tips.

If your refrigerator is running but warm, then...

Check out these tips that I wrote about that... it is a great place to start trouble shooting your unit...and something that you can do rather then calling a repair person to do a simple thing for you...

Refrigerator Condenser Coil Cleaning Refrigerator Repair

Refrigerator Troubleshooting Refrigerator Compressor

Refrigerator Compressor Start Capacitor and Start Relay


Refrigerator or Freezer not Cooling or Getting Cold

heatman101


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Oct 12, 2010 | General Electric Refrigerator Defrost...

1 Answer

I need wiring diagram for Paragon 8154-20. The plastic board has melted


I think you have the 8145-20 240V
This is a time-initiated defrost timer

Paragon 8145 page
http://www.uni-line.com/modules/catalog/SearchResults.aspx?mode=productsearch&prodID=8145

Wiring for 8145
http://www.uni-line.com/images/docs/refrigeration-8140series-wiring.jpg

Wiring diagram shows both 120V and 240V
L1 L2 is 240V
L N is 120V

090794f.jpg

Website that explains defrost cycle
http://www.appliance411.com/faq/howdefrostworks.shtml

Oct 11, 2010 | Paragon 8145-20 Defrost Timer

1 Answer

I have a bad Paragon 8145-20 its Sunday all I have in stock is a Paragon 8045-20. I know voltage is the same. Will the 8045-20 work? What is the difference betweentime out and temperature out. If the...


See wiring diagrams and manuals at following link:
http://waterheatertimer.org/Paragon-timers-and-manuals.html#defrost

8145-20 is 240V time initiated, pressure or temperature terminated with back-up time termination.
8045-20 is 240V time initiated, time terminated.

So 8145-20 has pressure or temperature limit switch that connects to terminal X that turns timer off, and ends defrost cycle. This timer is for hot gas defroster that has pressure/temperature limits. Check and see what the back-up time termination is set at on 8145-20. Look at small inner dial.

The 8045-20 timer does not use pressure/temperature limit switch, and instead you have to estimate length of time you want defrost cycle to run, and set inner dial to that time. Use same time as back-up time termination on 8145-20. Of course the pressure/temperature limits would not be exact and defrost cycle might not work correctly.

Here's the change-over wiring from 8145-20 to 8045-20.
There are other wiring variants depending on equipment.
240V hot wires from breaker box are L1 and L2
a) 8145-20 L1 is at terminal 1 > move L1 to terminal N on 8045-20
8145-20 L2 is at terminal N > move L2 to terminal X on 8045-20

b) 8145-20 hot gas defroster is at NO terminal 3 > move defroster to NO terminal 3 on 8045-20
Complete the 240 circuit to defroster by connecting to L2 at terminal X

c) 8145-20 refrigeration is at NC terminal 4 > move refrigeration to NC terminal 4 on 8045-20
Complete the 240 circuit to refrigeration by connecting to L2 at terminal X

Sep 12, 2010 | Paragon 8145-20 Defrost Timer

1 Answer

On a Paragon 8145-20 Defrost Timer, I know you land the refrigeration circuit on terminal 4, the heater on terminal 3, but what goes on terminal "X" and terminal "N"


Link below has 8145-20 wiring diagram:
http://waterheatertimer.org/Paragon-timers-and-manuals.html#defrost

Terminal N is 2nd wire needed to complete circuit.
In 240V 8145-20, there are two hot wires.
One Hot connects to terminal 1, with jumper to terminal 2.
Second Hot connects to terminal N, and this will power the clock motor and timer.
Terminal X is for temperature or pressure termination switch.

Defrost cycle works like this:
Timer is running but switched OFF.
Refrigeration fan is ON.
Timer switches ON, defrost cycle begins.
Refrigeration fan turns OFF.
Hot gas defrost turns ON.
When temperature-or-pressure limit switch reaches trip point, it switches timer OFF.
Refrigeration fan turns ON again.
Hot gas defrost turns OFF.

Aug 01, 2010 | Paragon 8145-20 Defrost Timer

1 Answer

The refrigerator quits cooling. If I unplug it and let it sit for a while then plug it back in, it start cooling again. I think the defrost timer may be malfunctioning.


yes, this is a defrost timer failure, mine went out recently, the best way to check is when it stops cooling to look in the freezer were the condenser is if it is frosted then the defrost timer is bad.
PartsDirect.com (sears supplier) might have it.

Mar 29, 2010 | General Electric Refrigerator Defrost...

3 Answers

Set defrost timer on Paragon Electric Defrost-O-Matic


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.

Nov 14, 2008 | Paragon 8145-20 Defrost Timer

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