Relays click constantly in forward and reverse and unit does not run.

Hard to say, but the three leading suspects would be:

• dirty relay or switch (whatever switches between the forward and reverse heads)
• bad head (so worn that one channel just doesn't produce as much signal)
• bad electrolytic capacitor in the reverse-head preamp

None of these qualifies as a quick fix and all of them would require an oscilloscope or high-sensitivity amplifier for troubleshooting.

Often replacing the temp relay and current relay on the compressor will solve the issue. You can buy what is called a 2 in 1 compressor control... easy to install and inexpensive. It just may work!

your forward gears unit is stuck, need the check the transmission unit gear system

Hi Larry,
There should be a micro switch for forward and reverse. Look underneath seat directly where gear selector goes through body. You should see a switch to activate forward and a switch to activate reverse. If unit cranks and drives well in reverse but not forward, I would start here. The G-1's I have fixed have this set up. Yours may be slightly different depending on the year. But I would find the micro switch that clicks when you put it in forward and replace it. They are fairly cheap and easy to switch out. Let me know how it goes for you. Good luck and happy wrenching!

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If this is a hydro unit and it runs ok forward there should be no other reason other than linkage adjustment for it not to run in reverse, for safety reasons they are normally adjusted to run slower in reverse

The Capstan motor is just for the play speed regulation so it has nothing to do with the reel motors. You can have an open safety microswitch or maybe a bad relay. It is really hard to say without looking at the unit but I am sure it is repairable. Is the right dummy plug put in the back? This can stop all transport functions if it is out.

it depends on how severe the power spike on the outage was,if your lucky it may just be the contactor,if not comp time,you can open the contactor case and manually start the compressor,use an insulated non-metallic device to do so

I have the exact same problem. In fact, my SPL-1506X is sitting disassembled on the kitchen table as I write this. There is a PC Board inside the unit with a relay that directs the motor to run in forward or reverse. My relay is fused in the reverse position. I know this because the relay's casing is clear polycarbonate. If that relay can be replaced, the SPL-1506X will be fixed, I'm convinced. Unfortunately, the relay is made in China. So much for quality! I located the part no. on the web: Sanyou SME-2110DP a DPDT relay. If you can find it(which I can't), you're in luck. Myself, I'm going to trash the unit.

This motor has motor start relay behind the control panel
Wires to the mortor:
BU-W run from motor start relay.
Y wash (forvard).
GY drain (reverse)
W-V neutral.

I’m happy to help further over the phone at https://www.6ya.com/expert/vitaliy_f406165329c75ede

please post brand and model