Technicians were very thorough and went over everything I should know.
On arrival found system operating normal.i then removed existing circuit boards and installed new ones .tested both systems,units are operating normal
Replace circuit board unit #1.
On arrival removed unit 1 loadout pump which was seized ,i then Replaced circulating pump load out on unit 1 .tested unit operation.units are operating normal. Spoke to office to check the previous invoices .
Drain clean upstairs shower drain.clogging due to partial clog.
On arrival found circulating pump on unit 1 load source out is short cycling,also checked circulating pump on unit2 load side and was running normal .i then spoke to customer and recommended replacing circulating pump before replacing circuit boards ,.units are operating normal at this time but they could stop again anytime. I also recommended replacing both systems due to age and shape.customer is getting a proposal . Customer didn't pay for pump but paid half for circuit boards .darlene and Jackie will work on correcting the invoice per darlene .
I did the maintenance on the equipment here. I replaced the air filters with ones provided by the customer for #3 and #4. I checked the electrical wiring and electrical systems, all are within specification except for the voltage absorption system for #4, which was subsequently replaced. I calculated heat of extraction for all geos and thoroughly checked #1 and #2 because the customer had concerns about multiple times the units stop heating with no fault codes displayed. After several phone calls with WF it was decided that the only cause of this is that the control board stops sending voltage to the compressor contactor. I filled out a parts order form and the customer paid $250 & $250 as a deposit. The boards will be ordered from WF. I pressurized the ground loops. Temperature rise for #3 and #4 is very good but auxiliary heat also works. Units are operating normal.