Help Needed on electric Gear Issue

[tyrefoote]

After a Christmas eve. suprise Go-around, I could use a little help from the forum trouble shooting this.

Mooney 1988 M20J

I Have no Gear indication Warning lights on the Annunciator Panel both gear down and gear unsafe as well as no light in the floor Indicator.

The only way to verify is with a flashlight in the visual sight floor indicator.

The gear cycles normaly. The bulbs are ok and annunciator test lights work.

Could it be the Main gear switch? Or the up or down limit switches?

Thanks to all who might could help. Merry Christmas and Happy Holliday

Fly Safe Ty

[N201MKTurbo]

I don't have the wiring diagram here, I do in the hanger, but you might check the dimmer or the dimmer fuses.

[kmyfm20s]

I would check the manaul gear extention latch between the seats. Make sure it is all the way in place because there is a sensor in it. What you discrbed happened to me but i was on the ground taxing. I had both the gear down and the gear unsafe light on. I opened the latch and then resecured it and took care of the problem. Hope that helps and its that simple.

[gwcolwell]

Immediately upon taking possession of N862HL, my instructor & I flew around the pattern and tried to land. Landing gear did not deploy. Tried several times,,,no luck. Dropped the gear manually and put the new purchase back in ther hanger for the seller to repair. A switch in the LH landing gear mechanism was found to have had burned/arched contacts. Don't remeber what the switch was called.

[tyrefoote]

M20 201kturbo: Where is the dimmer fuses located? I know there is a dimmer assoc with the nav lights. Nav lights on / annunciator lights dim. Thats Is still working for the low volts and Vac annunc lights.

KMYF20J: I've checked the latch and it cylcles fine latched and wont cycle unlatched

gwcolwell: I don't believe my Yr model has the switch on the main gear.

Still no resolution. THanks Ty

[Hank]

M20 201kturbo: Where is the dimmer fuses located?

gwcolwell: I don't believe my Yr model has the switch on the main gear.

Still no resolution. THanks Ty

Ty, we can give more appropriate help if you said what Model & Year your plane is . . . Things changed from time to time. My dimmer is high on the panel, my latch is below my left knee, there is a (small) switch on top of my left main gear leg. Others have dimmers low on the panel, below the throttle or even in the overhead. We don't know where yours is.

[Marauder]

Ty, we can give more appropriate help if you said what Model & Year your plane is . . . Things changed from time to time. My dimmer is high on the panel, my latch is below my left knee, there is a (small) switch on top of my left main gear leg. Others have dimmers low on the panel, below the throttle or even in the overhead. We don't know where yours is.

Hi Hank. His first post shows it as a 88J. I believe those planes have the gear annunciation built into the annunciation panel. It certainly is a strange problem. The fact the annunciation test works should eliminate anything with it (bulb, panel, etc). If the plane had a faulty airspeed switch or limit switch, I would not expect him to be able to cycle the gear.

My manuals don't go that far forward, but there must be a sensor that drive the annunciation for the gear separately from the gear limit switchs. Perhaps a mechanical switch that shows gear state either by gear motor position or a pure mechanical contact.

[tyrefoote]

As posted earlier, begining 1988 m20J

[tyrefoote]

Problem solved and it didn't cost a dime,Thanks for all the help

It was either a loose connection on the gear warning breaker or a defective breaker that fixed itself. No voltage was pasing through the breaker so I removed it and it read good with an Ohm meter so I Re-installed it and now all is fine. Connector was a quarter turn loose. Must have been loose from the avionics install 6 mo. ago. Ty