THE WELCH COMPANY
440 Davis Court #1602
San Francisco, CA 94111-2496
415 781 5700
rod@welchco.com
S U M M A R Y
DIARY: July 20, 2006 12:02 PM Thursday;
Rod Welch
RPM Mechanical fixed AC and replaced thermostat for Millie in Concord.
1...Summary/Objective
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CONTACTS
SUBJECTS
Air Conditioner Service Replace Fuses Install New Thermostat Inspect
0403 -
0403 - ..
0404 - Summary/Objective
0405 -
040501 - Follow up
040502 -
040503 - About three (3) days ago, the air conditioner failed at Millie's place
040504 - in Concord.
040506 - ..
040507 - We tried bumping the fan with a screwdriver, but the fan failed to
040508 - operate.
040510 - ..
040511 - Millie called Helen, who manages the rental units of apartments and
040512 - townhouses in the Cowell Terrace complex.
040514 - ..
040515 - Helen suggested replacing the compressor fuses, even though there is
040516 - nothing evident demonstrating failure of these components.
040518 - ..
040519 - Yesterday, we replaced the fuses in the control box on the wall next
040520 - to the compressor outside the kitchen window.
040522 - ..
040523 - The compressor fan still failed to operate.
040525 - ..
040526 - Helen provided a contact for AC system service...
040527 -
040528 - RPM Mechanical Services
040529 - Pleasant Hill, CA 94523
040530 - 925 766 4124
040531 - 925 988 9508
040534 - ..
040535 - Called and talked to Russ at RPM. Rus scheduled a service call for
040536 - today.
040538 - ..
040539 - Today, Dustin serviced the system on behalf of RPG Mechanical.
040541 - ..
040542 - Dustin used a screw driver to again bump the fan. This time the fan
040543 - started spinning normally. Evidently it is a necessary procedure to
040544 - start the compressor fan manually after replacing fuses.
040546 - ..
040547 - Dustin captured...
040548 -
040549 - AC compressor.... Courier Model #38EH030340
040550 - Fan Motor... 208/230 1/8 HP
040552 - ..
040553 - Dustin noted on the invoice that the fan is okay at this time.
040555 - ..
040556 - Air conditioner compressors have an efficiency rating. Dustin
040557 - indicated the currently installed Courier unit has a 10 rating.
040559 - ..
040560 - Cost to replace the compressor is about $3K, however, it may be
040561 - difficult to find a replacement. New models have a higher efficiency
040562 - rating of 13, and this is more expensive. He discussed possible
040563 - requirments to replace the heater fan upstairs, to maintain
040564 - compatibility with an AC compressor with a rating above the current
040565 - level 10. This could double the cost from $3K to above $6K.
040567 - ..
040568 - Alternativley, if the AC system fails, it might be fixed by replacing
040569 - only the fan. That is why he wrote down this product identification,
040570 - per above. ref SDS 0 U090
040572 - ..
040573 - Dustin did some tests, and verified the system now operates correctly
040574 - and consistently without further service.
040576 - ..
040577 - He said there is nothing showing the coolant is leaking, and so this
040578 - should last continuously without requiring replacement.
040580 - ..
040581 - He feels that fittings and connections for the compressor show no
040582 - signs of failure nor excessive wear that justifies replacement.
040584 - ..
040585 - Dustin said the unit is very clean compared to other units that RPG
040586 - services in the Cowell Terrace complex, and so he said there is no
040587 - benefit to disassembly and cleaning the compressor.
040589 - ..
040590 - Dustin checked the system ceiling registers for temperature. He
040591 - seemed to report finding that cool air outflow is about 69 degrees,
040592 - and the hot air intake register, which is upstairs, is above 89
040593 - degrees. He seemed to further say that 20 degrees is the correct
040594 - temperature differential. He said that as the temperature of the
040595 - total space falls, the cooling becomes more efficient by recylcing
040596 - cooler air.
040598 - ..
040599 - Dustin said that RPM has replaced a lot of thermostats in the Cowell
040600 - Terrace complex. We reviewed problems we have had with inaccurate
040601 - temperatures, and difficulty setting a temperature for automatic
040602 - system cycling. Dustin indicating these are common problems.
040604 - ..
040605 - Dustin quoted a price of about $70 to replace the thermostat. The
040606 - cost of the service visit is $78. He said the thermostat can be
040607 - replaced within the time of a standard service call.
040609 - ..
040610 - Called Millie.
040612 - ..
040613 - Reported progress fixing the air conditioner compressor, and advised
040614 - the cost to replace the thermostat is about $150.
040616 - ..
040617 - Mil approved the project.
040619 - ..
040620 - Dusin installed...
040621 -
040622 - White Rodgers
040623 - 1F78
040624 - 52 Day Programmable Thermostat
040625 - Emerson Climate Technologies
040627 - ..
040628 - Part No. 37-6614A
040630 - ..
040631 - http://www.white-rodgers.com
040633 - ..
040634 - Dustin advised that when the air conditioning system has not been
040635 - active, it can sometimes take up to about 5 minutes for the fan on
040636 - the compressor to begin working.
040638 - ..
040639 - Received invoice, with not evident identification, and dated today.
040640 -
040641 - Total amout....................... $137.40
040643 - ..
040644 - Paid with check #210.
040645 -
040646 - [On 180715 1815 Ali with Sunny Appliance Repair replaced
040647 - thermostat with Honywell Focus Pro 6000 device, ref SDS 1
040648 - F14M, for total cost $280. ref SDS 1 R653
040649 -
040650 -
040651 -
040652 -
040653 -
040654 -
040655 -
040656 -
040657 -
0407 -